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    <title>Inta Expansion Vessels &amp; Accessories  from MacDonald Plumbing &amp; Heating Supplies</title>
    <link>http://www.macdonaldplumbingsupplies.com/rss/1/productlistings_rss/c2147:m137:</link>
    <description></description>
    <copyright>Copyright 2026 MacDonald Plumbing &amp; Heating Supplies</copyright>
    <language>en</language>
    <lastBuildDate>Sat, 10 Oct 2026 02:05:05 +0100</lastBuildDate>
    <pubDate>Sat, 10 Oct 2026 02:05:05 +0100</pubDate>
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              <pubDate>Sat, 10 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>
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              <pubDate>Sat, 10 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>
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              <pubDate>Sat, 10 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>Sat, 10 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>
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              <pubDate>Sat, 10 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>
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              <pubDate>Sat, 10 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>
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              <pubDate>Sat, 10 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>
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