<rss version="2.0">
            <channel>
    <title>Inta  from MacDonald Plumbing &amp; Heating Supplies</title>
    <link>http://www.macdonaldplumbingsupplies.com/rss/1/productlistings_rss/m137:</link>
    <description></description>
    <copyright>Copyright 2026 MacDonald Plumbing &amp; Heating Supplies</copyright>
    <language>en</language>
    <lastBuildDate>Fri, 09 Oct 2026 02:05:05 +0100</lastBuildDate>
    <pubDate>Fri, 09 Oct 2026 02:05:05 +0100</pubDate>
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              <pubDate>Thu, 01 Oct 2026 20:20:26 +0100</pubDate>
              <title>Inta Zero Anti Freeze Valve 1&quot; Male x 1&quot; Female Swivel ZERO1SW</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/anti-freeze-valves-c685/inta-zero-anti-freeze-valve-1-male-x-1-female-swivel-zero1sw-p21443"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/inta-zero-anti-freeze-valve-1-male-x-1-female-swivel-zero1sw-p21443-67200_thumb.jpg" alt="Inta Zero Anti Freeze Valve 1&quot; Male x 1&quot; Female Swivel ZERO1SW"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/anti-freeze-valves-c685/inta-zero-anti-freeze-valve-1-male-x-1-female-swivel-zero1sw-p21443">Inta Zero Anti Freeze Valve 1&quot; Male x 1&quot; Female Swivel ZERO1SW</a></p>
<p>The Inta Zero Anti-Freeze Valve 1&quot; Male x 1&quot; Female Swivel ZERO1SW is designed to protect heat pump systems operating with water. It automatically discharges when the water temperature falls to 3°C, preventing ice formation that could lead to system breakdowns or costly damage.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/anti-freeze-valves-c685/inta-zero-anti-freeze-valve-1-male-x-1-female-swivel-zero1sw-p21443</guid>
              <link>http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/anti-freeze-valves-c685/inta-zero-anti-freeze-valve-1-male-x-1-female-swivel-zero1sw-p21443</link>
            </item>
          <item>
              <pubDate>Fri, 09 Oct 2026 02:05:05 +0100</pubDate>
              <title>Inta Zero Anti Freeze Valve 1¼ Male x 1¼ Female Swivel ZERO14SW</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/anti-freeze-valves-c685/inta-zero-anti-freeze-valve-1-male-x-1-female-swivel-zero14sw-p21442"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/inta-zero-anti-freeze-valve-1-male-x-1-female-swivel-zero14sw-p21442-67201_thumb.jpg" alt="Inta Zero Anti Freeze Valve 1¼ Male x 1¼ Female Swivel ZERO14SW"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/anti-freeze-valves-c685/inta-zero-anti-freeze-valve-1-male-x-1-female-swivel-zero14sw-p21442">Inta Zero Anti Freeze Valve 1¼ Male x 1¼ Female Swivel ZERO14SW</a></p>
<p>The Inta Zero Anti-Freeze Valve 1¼ Male x 1¼ Female Swivel ZERO14SW is specifically designed to safeguard heat pump systems operating with water. This unique valve discharges automatically when the water temperature falls to 3°C, preventing ice formation that could lead to system breakdowns or costly damage.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/anti-freeze-valves-c685/inta-zero-anti-freeze-valve-1-male-x-1-female-swivel-zero14sw-p21442</guid>
              <link>http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/anti-freeze-valves-c685/inta-zero-anti-freeze-valve-1-male-x-1-female-swivel-zero14sw-p21442</link>
            </item>
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              <pubDate>Thu, 01 Oct 2026 20:20:26 +0100</pubDate>
              <title>Inta 35mm Anti-Freeze Valve ZERO35</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/anti-freeze-valves-c685/inta-35mm-anti-freeze-valve-zero35-p21196"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/inta-35mm-anti-freeze-valve-zero35-p21196-44578_thumb.jpg" alt="Inta 35mm Anti-Freeze Valve ZERO35"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/anti-freeze-valves-c685/inta-35mm-anti-freeze-valve-zero35-p21196">Inta 35mm Anti-Freeze Valve ZERO35</a></p>
<p>Operation

The Inta Zero is a unique antifreeze valve designed and engineered to protect heat pump systems that are operating with water.
Designed to discharge when the system water temperature drops to 3°C, preventing ice from forming in the heat pump circuit that could cause breakdown or costly damage to the system.
</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/anti-freeze-valves-c685/inta-35mm-anti-freeze-valve-zero35-p21196</guid>
              <link>http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/anti-freeze-valves-c685/inta-35mm-anti-freeze-valve-zero35-p21196</link>
            </item>
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              <pubDate>Fri, 09 Oct 2026 02:05:05 +0100</pubDate>
              <title>Inta Zilmet Cal-Pro 4 Litre Heating Expansion Vessel &amp; Mounting Bracket Z1-301004</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-4-litre-heating-expansion-vessel-mounting-bracket-z1-301004-p21147"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/inta-zilmet-cal-pro-4-litre-heating-expansion-vessel-mounting-bracket-z1-301004-p21147-43970_thumb.jpg" alt="Inta Zilmet Cal-Pro 4 Litre Heating Expansion Vessel &amp; Mounting Bracket Z1-301004"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-4-litre-heating-expansion-vessel-mounting-bracket-z1-301004-p21147">Inta Zilmet Cal-Pro 4 Litre Heating Expansion Vessel &amp; Mounting Bracket Z1-301004</a></p>
<p>The Zilmet Cal-Pro 4 Litre Heating Expansion Vessel &amp;amp; Mounting Bracket (Z1-301004) ensures optimal performance and safety in closed heating systems. Featuring carbon steel construction and an SBR synthetic rubber diaphragm, this vessel is suitable for all heating system types. Its hard-wearing epoxy polyester powder-coated finish ensures durability, while 100% factory testing guarantees reliability. Fully CPR compliant and with a maximum working temperature of 90°C, it&#039;s a trusted choice for maintaining pressure and reducing energy consumption.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-4-litre-heating-expansion-vessel-mounting-bracket-z1-301004-p21147</guid>
              <link>http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-4-litre-heating-expansion-vessel-mounting-bracket-z1-301004-p21147</link>
            </item>
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              <pubDate>Fri, 09 Oct 2026 02:05:05 +0100</pubDate>
              <title>Inta Zilmet Cal-Pro 8 Litre Heating Expansion Vessel &amp; Mounting Bracket Z1-301008</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-8-litre-heating-expansion-vessel-mounting-bracket-z1-301008-p21148"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/inta-zilmet-cal-pro-8-litre-heating-expansion-vessel-mounting-bracket-z1-301008-p21148-43971_thumb.jpg" alt="Inta Zilmet Cal-Pro 8 Litre Heating Expansion Vessel &amp; Mounting Bracket Z1-301008"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-8-litre-heating-expansion-vessel-mounting-bracket-z1-301008-p21148">Inta Zilmet Cal-Pro 8 Litre Heating Expansion Vessel &amp; Mounting Bracket Z1-301008</a></p>
<p>The Zilmet Cal-Pro 8 Litre Heating Expansion Vessel &amp;amp; Mounting Bracket (Z1-301008) ensures optimal performance and safety in closed heating systems. With its carbon steel construction, SBR synthetic rubber diaphragm, and hard-wearing epoxy polyester powder-coated finish, this vessel is suitable for all heating system types. Fully CPR compliant and factory tested for reliability, it helps maintain pressure and reduces energy consumption, maximizing system efficiency.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-8-litre-heating-expansion-vessel-mounting-bracket-z1-301008-p21148</guid>
              <link>http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-8-litre-heating-expansion-vessel-mounting-bracket-z1-301008-p21148</link>
            </item>
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              <pubDate>Fri, 09 Oct 2026 02:05:05 +0100</pubDate>
              <title>Inta Zilmet Cal-Pro 12 Litre Heating Expansion Vessel &amp; Mounting Bracket Z1-301012</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-12-litre-heating-expansion-vessel-mounting-bracket-z1-301012-p21149"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/inta-zilmet-cal-pro-12-litre-heating-expansion-vessel-mounting-bracket-z1-301012-p21149-43972_thumb.jpg" alt="Inta Zilmet Cal-Pro 12 Litre Heating Expansion Vessel &amp; Mounting Bracket Z1-301012"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-12-litre-heating-expansion-vessel-mounting-bracket-z1-301012-p21149">Inta Zilmet Cal-Pro 12 Litre Heating Expansion Vessel &amp; Mounting Bracket Z1-301012</a></p>
<p>The Zilmet Cal-Pro 12 Litre Heating Expansion Vessel &amp;amp; Mounting Bracket (Z1-301012) ensures reliable performance in closed heating systems. With its carbon steel construction, SBR synthetic rubber diaphragm, and durable epoxy polyester powder-coated finish, this vessel is suitable for all heating system types. Fully CPR compliant and factory tested for 100% reliability, it helps maintain pressure and reduces energy consumption, optimizing system efficiency.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-12-litre-heating-expansion-vessel-mounting-bracket-z1-301012-p21149</guid>
              <link>http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-12-litre-heating-expansion-vessel-mounting-bracket-z1-301012-p21149</link>
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              <pubDate>Fri, 09 Oct 2026 02:05:05 +0100</pubDate>
              <title>Inta Zilmet Cal-Pro 18 Litre Heating Expansion Vessel &amp; Mounting Bracket Z1-301018</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-18-litre-heating-expansion-vessel-mounting-bracket-z1-301018-p21150"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/inta-zilmet-cal-pro-18-litre-heating-expansion-vessel-mounting-bracket-z1-301018-p21150-43973_thumb.jpg" alt="Inta Zilmet Cal-Pro 18 Litre Heating Expansion Vessel &amp; Mounting Bracket Z1-301018"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-18-litre-heating-expansion-vessel-mounting-bracket-z1-301018-p21150">Inta Zilmet Cal-Pro 18 Litre Heating Expansion Vessel &amp; Mounting Bracket Z1-301018</a></p>
<p>The Zilmet Cal-Pro 18 Litre Heating Expansion Vessel &amp;amp; Mounting Bracket (Z1-301018) ensures efficient operation in closed heating systems. Featuring carbon steel construction, SBR synthetic rubber diaphragm, and a durable epoxy polyester powder-coated finish, this vessel is compatible with all heating system types. Fully CPR compliant and factory tested for reliability, it helps maintain optimal pressure and minimizes energy consumption, promoting system longevity and efficiency.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-18-litre-heating-expansion-vessel-mounting-bracket-z1-301018-p21150</guid>
              <link>http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-18-litre-heating-expansion-vessel-mounting-bracket-z1-301018-p21150</link>
            </item>
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              <pubDate>Fri, 09 Oct 2026 02:05:05 +0100</pubDate>
              <title>Inta Zilmet Cal-Pro 24 Litre Heating Expansion Vessel &amp; Mounting Bracket Z1-301024</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-24-litre-heating-expansion-vessel-mounting-bracket-z1-301024-p21151"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/inta-zilmet-cal-pro-24-litre-heating-expansion-vessel-mounting-bracket-z1-301024-p21151-43974_thumb.jpg" alt="Inta Zilmet Cal-Pro 24 Litre Heating Expansion Vessel &amp; Mounting Bracket Z1-301024"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-24-litre-heating-expansion-vessel-mounting-bracket-z1-301024-p21151">Inta Zilmet Cal-Pro 24 Litre Heating Expansion Vessel &amp; Mounting Bracket Z1-301024</a></p>
<p>Elevate your heating system&#039;s performance with the Zilmet Cal-Pro 24 Litre Heating Expansion Vessel &amp;amp; Mounting Bracket. Crafted for closed systems, it effectively manages water volume fluctuations due to temperature changes, ensuring consistent pressure levels. Constructed from durable materials and compliant with industry standards, it offers reliability and longevity for optimal heating efficiency.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-24-litre-heating-expansion-vessel-mounting-bracket-z1-301024-p21151</guid>
              <link>http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-24-litre-heating-expansion-vessel-mounting-bracket-z1-301024-p21151</link>
            </item>
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              <pubDate>Fri, 09 Oct 2026 02:05:05 +0100</pubDate>
              <title>Inta Zilmet Cal-Pro 35 Litre Floor Standing Heating Expansion Vessel Z1-302035CP</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-35-litre-floor-standing-heating-expansion-vessel-z1-302035cp-p21152"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/inta-zilmet-cal-pro-35-litre-floor-standing-heating-expansion-vessel-z1-302035cp-p21152-43975_thumb.jpg" alt="Inta Zilmet Cal-Pro 35 Litre Floor Standing Heating Expansion Vessel Z1-302035CP"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-35-litre-floor-standing-heating-expansion-vessel-z1-302035cp-p21152">Inta Zilmet Cal-Pro 35 Litre Floor Standing Heating Expansion Vessel Z1-302035CP</a></p>
<p>Elevate your heating system&#039;s performance with the Zilmet Cal-Pro 35 Litre Floor Standing Heating Expansion Vessel. Designed for closed systems, it effectively manages water volume fluctuations caused by temperature changes, ensuring consistent pressure levels. Constructed from durable carbon steel with an SBR synthetic rubber diaphragm, it offers reliability and longevity. Fully compliant with CPR standards and factory tested for quality assurance, it&#039;s an ideal choice for maintaining energy-efficient heating.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-35-litre-floor-standing-heating-expansion-vessel-z1-302035cp-p21152</guid>
              <link>http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-35-litre-floor-standing-heating-expansion-vessel-z1-302035cp-p21152</link>
            </item>
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              <pubDate>Fri, 09 Oct 2026 02:05:05 +0100</pubDate>
              <title>Inta Zilmet Cal-Pro 50 Litre Floor Standing Heating Expansion Vessel Z1-302050CP</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-50-litre-floor-standing-heating-expansion-vessel-z1-302050cp-p21153"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/inta-zilmet-cal-pro-50-litre-floor-standing-heating-expansion-vessel-z1-302050cp-p21153-43976_thumb.jpg" alt="Inta Zilmet Cal-Pro 50 Litre Floor Standing Heating Expansion Vessel Z1-302050CP"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-50-litre-floor-standing-heating-expansion-vessel-z1-302050cp-p21153">Inta Zilmet Cal-Pro 50 Litre Floor Standing Heating Expansion Vessel Z1-302050CP</a></p>
<p>Elevate your heating system&#039;s efficiency with the Zilmet Cal-Pro 50 Litre Floor Standing Heating Expansion Vessel. Crafted from durable carbon steel with an SBR synthetic rubber diaphragm, it effectively manages water volume fluctuations caused by temperature changes. Fully compliant with CPR standards and factory tested for reliability, it ensures consistent pressure levels and reduced energy consumption. Suitable for all heating systems, it&#039;s a dependable choice for maintaining optimal performance.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-50-litre-floor-standing-heating-expansion-vessel-z1-302050cp-p21153</guid>
              <link>http://www.macdonaldplumbingsupplies.com/heating-c6/expansion-vessels-accessories-c2147/inta-zilmet-cal-pro-50-litre-floor-standing-heating-expansion-vessel-z1-302050cp-p21153</link>
            </item>
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              <pubDate>Thu, 01 Oct 2026 20:20:26 +0100</pubDate>
              <title>Inta Zilmet Ultra-Pro 12 Litre Wall Mounted Potable Vessel 22mm Connection C/W Interchangeable Membrane &amp; Bracket</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/heating-c6/potable-vessels-c2173/inta-zilmet-ultra-pro-12-litre-wall-mounted-potable-vessel-22mm-connection-c-w-interchangeable-membrane-bracket-p21154"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/inta-zilmet-ultra-pro-12-litre-wall-mounted-potable-vessel-22mm-connection-c-w-interchangeable-membrane-bracket-p21154-43977_thumb.jpg" alt="Inta Zilmet Ultra-Pro 12 Litre Wall Mounted Potable Vessel 22mm Connection C/W Interchangeable Membrane &amp; Bracket"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/heating-c6/potable-vessels-c2173/inta-zilmet-ultra-pro-12-litre-wall-mounted-potable-vessel-22mm-connection-c-w-interchangeable-membrane-bracket-p21154">Inta Zilmet Ultra-Pro 12 Litre Wall Mounted Potable Vessel 22mm Connection C/W Interchangeable Membrane &amp; Bracket</a></p>
<p>The Zilmet Ultra-Pro 12 Litre Wall Mounted Potable Vessel offers a dependable solution for various potable water applications. Designed with versatility in mind, it boasts galvanized steel flanges, stainless steel threaded connections, and a robust carbon steel shell with MIG welding for durability. With fixed membranes at both ends and a replaceable membrane, it ensures water purity and prevents contact between the vessel and membrane. Fully certified according to PED 97/23/CE standards and factory tested for quality assurance, it&#039;s a trusted choice for water pumps, booster systems, and other potable water needs.
&amp;nbsp;</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/heating-c6/potable-vessels-c2173/inta-zilmet-ultra-pro-12-litre-wall-mounted-potable-vessel-22mm-connection-c-w-interchangeable-membrane-bracket-p21154</guid>
              <link>http://www.macdonaldplumbingsupplies.com/heating-c6/potable-vessels-c2173/inta-zilmet-ultra-pro-12-litre-wall-mounted-potable-vessel-22mm-connection-c-w-interchangeable-membrane-bracket-p21154</link>
            </item>
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              <pubDate>Thu, 01 Oct 2026 20:20:26 +0100</pubDate>
              <title>Inta Zilmet Ultra-Pro 19 Litre Wall Mounted Potable Water Vessel 3/4&quot; BSP C/W Changeable Membrane &amp; Bracket</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/heating-c6/potable-vessels-c2173/inta-zilmet-ultra-pro-19-litre-wall-mounted-potable-water-vessel-3-4-bsp-c-w-changeable-membrane-bracket-p21155"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/inta-zilmet-ultra-pro-19-litre-wall-mounted-potable-water-vessel-3-4-bsp-c-w-changeable-membrane-bracket-p21155-43978_thumb.jpg" alt="Inta Zilmet Ultra-Pro 19 Litre Wall Mounted Potable Water Vessel 3/4&quot; BSP C/W Changeable Membrane &amp; Bracket"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/heating-c6/potable-vessels-c2173/inta-zilmet-ultra-pro-19-litre-wall-mounted-potable-water-vessel-3-4-bsp-c-w-changeable-membrane-bracket-p21155">Inta Zilmet Ultra-Pro 19 Litre Wall Mounted Potable Water Vessel 3/4&quot; BSP C/W Changeable Membrane &amp; Bracket</a></p>
<p>The Zilmet Ultra-Pro 19 Litre Wall Mounted Potable Water Vessel offers a dependable solution for various potable water applications. Designed with versatility in mind, it boasts galvanized steel flanges, stainless steel threaded connections, and a robust carbon steel shell with MIG welding for durability. With fixed membranes at both ends and a replaceable membrane, it ensures water purity and prevents contact between the vessel and membrane. Fully certified according to PED 97/23/CE standards and factory tested for quality assurance, it&#039;s a trusted choice for water pumps, booster systems, and other potable water needs.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/heating-c6/potable-vessels-c2173/inta-zilmet-ultra-pro-19-litre-wall-mounted-potable-water-vessel-3-4-bsp-c-w-changeable-membrane-bracket-p21155</guid>
              <link>http://www.macdonaldplumbingsupplies.com/heating-c6/potable-vessels-c2173/inta-zilmet-ultra-pro-19-litre-wall-mounted-potable-water-vessel-3-4-bsp-c-w-changeable-membrane-bracket-p21155</link>
            </item>
          <item>
              <pubDate>Thu, 01 Oct 2026 20:20:26 +0100</pubDate>
              <title>Inta Zilmet Ultra-Pro 24 Litre Wall Mounted Potable Vessel 22mm Connection C/W Interchangeable Membrane &amp; Bracket</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/heating-c6/potable-vessels-c2173/inta-zilmet-ultra-pro-24-litre-wall-mounted-potable-vessel-22mm-connection-c-w-interchangeable-membrane-bracket-p21156"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/inta-zilmet-ultra-pro-24-litre-wall-mounted-potable-vessel-22mm-connection-c-w-interchangeable-membrane-bracket-p21156-43979_thumb.jpg" alt="Inta Zilmet Ultra-Pro 24 Litre Wall Mounted Potable Vessel 22mm Connection C/W Interchangeable Membrane &amp; Bracket"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/heating-c6/potable-vessels-c2173/inta-zilmet-ultra-pro-24-litre-wall-mounted-potable-vessel-22mm-connection-c-w-interchangeable-membrane-bracket-p21156">Inta Zilmet Ultra-Pro 24 Litre Wall Mounted Potable Vessel 22mm Connection C/W Interchangeable Membrane &amp; Bracket</a></p>
<p>The Zilmet Ultra-Pro 24 Litre Wall Mounted Potable Vessel offers a dependable solution for various potable water applications. Designed with versatility in mind, it boasts galvanized steel flanges, stainless steel threaded connections, and a robust carbon steel shell with MIG welding for durability. With fixed membranes at both ends and a replaceable membrane, it ensures water purity and prevents contact between the vessel and membrane. Fully certified according to PED 97/23/CE standards and factory tested for quality assurance, it&#039;s a trusted choice for water pumps, booster systems, and other potable water needs.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/heating-c6/potable-vessels-c2173/inta-zilmet-ultra-pro-24-litre-wall-mounted-potable-vessel-22mm-connection-c-w-interchangeable-membrane-bracket-p21156</guid>
              <link>http://www.macdonaldplumbingsupplies.com/heating-c6/potable-vessels-c2173/inta-zilmet-ultra-pro-24-litre-wall-mounted-potable-vessel-22mm-connection-c-w-interchangeable-membrane-bracket-p21156</link>
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          <item>
              <pubDate>Fri, 09 Oct 2026 02:05:05 +0100</pubDate>
              <title>Inta 28mm Anti-Freeze Valve ZERO28</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/anti-freeze-valves-c685/inta-28mm-anti-freeze-valve-zero28-p16592"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/inta-28mm-anti-freeze-valve-zero28-p16592-35732_thumb.jpg" alt="Inta 28mm Anti-Freeze Valve ZERO28"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/anti-freeze-valves-c685/inta-28mm-anti-freeze-valve-zero28-p16592">Inta 28mm Anti-Freeze Valve ZERO28</a></p>
<p>Operation

The Inta Zero is a unique antifreeze valve designed and engineered to protect heat pump systems that are operating with water.
Designed to discharge when the system water temperature drops to 3°C, preventing ice from forming in the heat pump circuit that could cause breakdown or costly damage to the system.
</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/anti-freeze-valves-c685/inta-28mm-anti-freeze-valve-zero28-p16592</guid>
              <link>http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/anti-freeze-valves-c685/inta-28mm-anti-freeze-valve-zero28-p16592</link>
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