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    <title>Anti Freeze Valves  from MacDonald Plumbing &amp; Heating Supplies</title>
    <link>http://www.macdonaldplumbingsupplies.com/rss/1/productlistings_rss/c685::tee</link>
    <description></description>
    <copyright>Copyright 2026 MacDonald Plumbing &amp; Heating Supplies</copyright>
    <language>en</language>
    <lastBuildDate>Sun, 08 Nov 2026 02:05:05 +0000</lastBuildDate>
    <pubDate>Sun, 08 Nov 2026 02:05:05 +0000</pubDate>
              <item>
              <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>
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              <pubDate>Sun, 08 Nov 2026 02:05:05 +0000</pubDate>
              <title>Primary Pro Pre Made Insulation Jacket For Intatec 28mm Anti Freeze Valve (AS32)</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/primary-pro-insulation-accessories-c686/primary-pro-pre-made-insulation-jacket-for-intatec-28mm-anti-freeze-valve-as32-p18860"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/primary-pro-pre-made-insulation-jacket-for-intatec-28mm-anti-freeze-valve-as32-p18860-40043_thumb.jpg" alt="Primary Pro Pre Made Insulation Jacket For Intatec 28mm Anti Freeze Valve (AS32)"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/primary-pro-insulation-accessories-c686/primary-pro-pre-made-insulation-jacket-for-intatec-28mm-anti-freeze-valve-as32-p18860">Primary Pro Pre Made Insulation Jacket For Intatec 28mm Anti Freeze Valve (AS32)</a></p>
<p>The Primary Pro Pre-Made Insulation Jacket is tailored for the Intatec 28mm anti-freeze valve. Its unique UV-protected and weather-resistant coating guarantees enduring protection. Specifically designed for heat pump system external heating pipelines and accessories, it pairs seamlessly with Condensate Pro Bond &amp;amp; Seal for a secure seal on all insulation joints.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/primary-pro-insulation-accessories-c686/primary-pro-pre-made-insulation-jacket-for-intatec-28mm-anti-freeze-valve-as32-p18860</guid>
              <link>http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/primary-pro-insulation-accessories-c686/primary-pro-pre-made-insulation-jacket-for-intatec-28mm-anti-freeze-valve-as32-p18860</link>
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          <item>
              <pubDate>Sun, 08 Nov 2026 02:05:05 +0000</pubDate>
              <title>Primary Pro Pre Made Insulation Jacket For Intatec 1&quot; Anti Freeze Valve (AS33)</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/primary-pro-insulation-accessories-c686/primary-pro-pre-made-insulation-jacket-for-intatec-1-anti-freeze-valve-as33-p18861"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/primary-pro-pre-made-insulation-jacket-for-intatec-1-anti-freeze-valve-as33-p18861-40044_thumb.jpg" alt="Primary Pro Pre Made Insulation Jacket For Intatec 1&quot; Anti Freeze Valve (AS33)"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/primary-pro-insulation-accessories-c686/primary-pro-pre-made-insulation-jacket-for-intatec-1-anti-freeze-valve-as33-p18861">Primary Pro Pre Made Insulation Jacket For Intatec 1&quot; Anti Freeze Valve (AS33)</a></p>
<p>The Primary Pro Insulation offers pre-made protection for your Intatec 1&quot; anti-freeze valve. With a unique UV-resistant and weather-proof coating, it ensures durable shielding against the elements. Specifically designed for heat pump system external heating pipelines and accessories, it pairs perfectly with Condensate Pro Bond &amp;amp; Seal for secure insulation joints.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/primary-pro-insulation-accessories-c686/primary-pro-pre-made-insulation-jacket-for-intatec-1-anti-freeze-valve-as33-p18861</guid>
              <link>http://www.macdonaldplumbingsupplies.com/heat-pumps-accessories-c682/primary-pro-insulation-accessories-c686/primary-pro-pre-made-insulation-jacket-for-intatec-1-anti-freeze-valve-as33-p18861</link>
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              <pubDate>Sun, 08 Nov 2026 02:05:05 +0000</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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