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    <title>MacDonald Plumbing Supplies  from MacDonald Plumbing &amp; Heating Supplies</title>
    <link>http://www.macdonaldplumbingsupplies.com/rss/1/productlistings_rss/m51::expansion:vessel</link>
    <description></description>
    <copyright>Copyright 2026 MacDonald Plumbing &amp; Heating Supplies</copyright>
    <language>en</language>
    <lastBuildDate>Sun, 11 Oct 2026 02:05:32 +0100</lastBuildDate>
    <pubDate>Sun, 11 Oct 2026 02:05:32 +0100</pubDate>
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              <pubDate>Sun, 11 Oct 2026 02:05:32 +0100</pubDate>
              <title>MacDonald Plumbing Supplies MacVessel 12Ltr Heating Vessels Complete With Mounting Bracket</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-12ltr-heating-vessels-complete-with-mounting-bracket-p26096"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/macdonald-plumbing-supplies-macvessel-12ltr-heating-vessels-complete-with-mounting-bracket-p26096-74384_thumb.jpg" alt="MacDonald Plumbing Supplies MacVessel 12Ltr Heating Vessels Complete With Mounting Bracket"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-12ltr-heating-vessels-complete-with-mounting-bracket-p26096">MacDonald Plumbing Supplies MacVessel 12Ltr Heating Vessels Complete With Mounting Bracket</a></p>
<p>The MacVessel 12Ltr Heating Vessel Complete With Mounting Bracket is designed for use within sealed central heating systems where additional expansion capacity is required. Supplied complete with a mounting bracket, it provides a practical installation solution for heating engineers and plumbers. The 12 litre vessel has a maximum working pressure of 6 bar and a test pressure of 9 bar. It has a working temperature range from minus 10 to 99°C, with a factory pre charge of 1.5 bar using air. The vessel features a non replaceable bladder and a system water connection thread manufactured to BS EN ISO 228. It is also CE marked.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-12ltr-heating-vessels-complete-with-mounting-bracket-p26096</guid>
              <link>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-12ltr-heating-vessels-complete-with-mounting-bracket-p26096</link>
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              <pubDate>Sun, 11 Oct 2026 02:05:32 +0100</pubDate>
              <title>MacDonald Plumbing Supplies MacVessel 18Ltr Heating Vessels Complete With Mounting Bracket</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-18ltr-heating-vessels-complete-with-mounting-bracket-p26097"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/macdonald-plumbing-supplies-macvessel-18ltr-heating-vessels-complete-with-mounting-bracket-p26097-74385_thumb.jpg" alt="MacDonald Plumbing Supplies MacVessel 18Ltr Heating Vessels Complete With Mounting Bracket"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-18ltr-heating-vessels-complete-with-mounting-bracket-p26097">MacDonald Plumbing Supplies MacVessel 18Ltr Heating Vessels Complete With Mounting Bracket</a></p>
<p>The MacVessel 18Ltr Heating Vessel Complete With Mounting Bracket is designed for use within sealed central heating systems where additional expansion capacity is required. Supplied complete with a mounting bracket, it provides a practical installation solution for plumbers and heating engineers. The 18 litre vessel has a maximum working pressure of 6 bar and a test pressure of 9 bar. It has a working temperature range from minus 10 to 99°C and is factory pre charged to 1.5 bar using air. The vessel features a non replaceable bladder, a system water connection thread to BS EN ISO 228 and CE marking.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-18ltr-heating-vessels-complete-with-mounting-bracket-p26097</guid>
              <link>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-18ltr-heating-vessels-complete-with-mounting-bracket-p26097</link>
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              <pubDate>Sun, 11 Oct 2026 02:05:32 +0100</pubDate>
              <title>MacDonald Plumbing Supplies MacVessel 24Ltr Heating Vessels Complete With Mounting Bracket</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-24ltr-heating-vessels-complete-with-mounting-bracket-p26098"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/macdonald-plumbing-supplies-macvessel-24ltr-heating-vessels-complete-with-mounting-bracket-p26098-74386_thumb.jpg" alt="MacDonald Plumbing Supplies MacVessel 24Ltr Heating Vessels Complete With Mounting Bracket"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-24ltr-heating-vessels-complete-with-mounting-bracket-p26098">MacDonald Plumbing Supplies MacVessel 24Ltr Heating Vessels Complete With Mounting Bracket</a></p>
<p>The MacVessel 24Ltr Heating Vessel Complete With Mounting Bracket is designed for use within sealed central heating systems where additional expansion capacity is required. Supplied complete with a mounting bracket, it provides a practical installation solution for plumbers and heating engineers. The 24 litre vessel has a maximum working pressure of 6 bar and a test pressure of 9 bar. It has a working temperature range from minus 10 to 99°C and is factory pre charged to 1.5 bar using air. The vessel features a non replaceable bladder, a system water connection thread to BS EN ISO 228 and CE marking.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-24ltr-heating-vessels-complete-with-mounting-bracket-p26098</guid>
              <link>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-24ltr-heating-vessels-complete-with-mounting-bracket-p26098</link>
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              <pubDate>Fri, 09 Oct 2026 16:41:52 +0100</pubDate>
              <title>MacDonald Plumbing Supplies MacVessel 8Ltr Potable Vessel</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-8ltr-potable-vessel-p26099"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/macdonald-plumbing-supplies-macvessel-8ltr-potable-vessel-p26099-74379_thumb.jpg" alt="MacDonald Plumbing Supplies MacVessel 8Ltr Potable Vessel"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-8ltr-potable-vessel-p26099">MacDonald Plumbing Supplies MacVessel 8Ltr Potable Vessel</a></p>
<p>The MacVessel 8Ltr Potable Vessel is designed for use in potable water systems where additional expansion capacity is required. With an 8 litre capacity, it provides a practical solution for applications where water expansion needs to be accommodated within the system. The vessel has a maximum working pressure of 8 bar and a test pressure of 12 bar, with a working temperature range from minus 10 to 99°C. It is factory pre charged to 2 bar using air and features a non replaceable bladder. The system water connection thread conforms to BS EN ISO 228 and the vessel is CE marked.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-8ltr-potable-vessel-p26099</guid>
              <link>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-8ltr-potable-vessel-p26099</link>
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              <pubDate>Fri, 09 Oct 2026 16:41:52 +0100</pubDate>
              <title>MacDonald Plumbing Supplies MacVessel 12Ltr Potable Vessel</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-12ltr-potable-vessel-p26100"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/macdonald-plumbing-supplies-macvessel-12ltr-potable-vessel-p26100-74380_thumb.jpg" alt="MacDonald Plumbing Supplies MacVessel 12Ltr Potable Vessel"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-12ltr-potable-vessel-p26100">MacDonald Plumbing Supplies MacVessel 12Ltr Potable Vessel</a></p>
<p>The MacVessel 12Ltr Potable Vessel is designed for use in potable water systems where additional expansion capacity is required. With a 12 litre capacity, it provides a practical solution for installations where water expansion needs to be accommodated within the system. The vessel has a maximum working pressure of 8 bar and a test pressure of 12 bar, with a working temperature range from minus 10 to 99°C. It is factory pre charged to 2 bar using air and features a non replaceable bladder. The system water connection thread conforms to BS EN ISO 228 and the vessel is CE marked.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-12ltr-potable-vessel-p26100</guid>
              <link>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-12ltr-potable-vessel-p26100</link>
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              <pubDate>Sun, 11 Oct 2026 02:05:32 +0100</pubDate>
              <title>MacDonald Plumbing Supplies MacVessel 18Ltr Potable Vessel</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-18ltr-potable-vessel-p26101"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/macdonald-plumbing-supplies-macvessel-18ltr-potable-vessel-p26101-74381_thumb.jpg" alt="MacDonald Plumbing Supplies MacVessel 18Ltr Potable Vessel"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-18ltr-potable-vessel-p26101">MacDonald Plumbing Supplies MacVessel 18Ltr Potable Vessel</a></p>
<p>The MacVessel 18Ltr Potable Vessel is designed for use in potable water systems where additional expansion capacity is required. With an 18 litre capacity, it provides a practical solution for installations where a larger expansion volume is needed to accommodate changes in water volume and pressure. The vessel has a maximum working pressure of 8 bar and a test pressure of 12 bar, with a working temperature range from minus 10 to 99°C. It is factory pre charged to 2 bar using air and features a non replaceable bladder. The system water connection thread conforms to BS EN ISO 228 and the vessel is CE marked.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-18ltr-potable-vessel-p26101</guid>
              <link>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-18ltr-potable-vessel-p26101</link>
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              <pubDate>Sun, 11 Oct 2026 02:05:32 +0100</pubDate>
              <title>MacDonald Plumbing Supplies MacVessel 24Ltr Potable Vessel</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-24ltr-potable-vessel-p26102"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/macdonald-plumbing-supplies-macvessel-24ltr-potable-vessel-p26102-74382_thumb.jpg" alt="MacDonald Plumbing Supplies MacVessel 24Ltr Potable Vessel"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-24ltr-potable-vessel-p26102">MacDonald Plumbing Supplies MacVessel 24Ltr Potable Vessel</a></p>
<p>The MacVessel 24Ltr Potable Vessel is designed for use in potable water systems where additional expansion capacity is required. With a 24 litre capacity, it provides a practical solution for installations requiring greater expansion volume to accommodate changes in water volume and pressure. The vessel has a maximum working pressure of 8 bar and a test pressure of 12 bar, with a working temperature range from minus 10 to 99°C. It is factory pre charged to 2 bar using air and features a non replaceable bladder. The system water connection thread conforms to BS EN ISO 228 and the vessel is CE marked.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-24ltr-potable-vessel-p26102</guid>
              <link>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-24ltr-potable-vessel-p26102</link>
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              <pubDate>Sun, 11 Oct 2026 02:05:32 +0100</pubDate>
              <title>MacDonald Plumbing Supplies MacVessel 8Ltr Heating Vessels Complete With Mounting Bracket</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-8ltr-heating-vessels-complete-with-mounting-bracket-p26095"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/macdonald-plumbing-supplies-macvessel-8ltr-heating-vessels-complete-with-mounting-bracket-p26095-74383_thumb.jpg" alt="MacDonald Plumbing Supplies MacVessel 8Ltr Heating Vessels Complete With Mounting Bracket"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-8ltr-heating-vessels-complete-with-mounting-bracket-p26095">MacDonald Plumbing Supplies MacVessel 8Ltr Heating Vessels Complete With Mounting Bracket</a></p>
<p>The MacVessel 8Ltr Heating Vessel Complete With Mounting Bracket is designed for use within sealed central heating systems where additional expansion capacity is required. Supplied complete with a mounting bracket, it provides a convenient installation solution for heating engineers and plumbers. The vessel has a maximum working pressure of 6 bar and a working temperature range of minus 10 to 99°C. It features a factory pre charge of 1.5 bar with air, a non replaceable bladder and a system water connection thread manufactured to BS EN ISO 228. The vessel is also CE marked.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-8ltr-heating-vessels-complete-with-mounting-bracket-p26095</guid>
              <link>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-8ltr-heating-vessels-complete-with-mounting-bracket-p26095</link>
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              <pubDate>Sun, 11 Oct 2026 02:05:32 +0100</pubDate>
              <title>MacDonald Plumbing Supplies MacVessel Sealed System Filling Kit</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-sealed-system-filling-kit-p26094"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/macdonald-plumbing-supplies-macvessel-sealed-system-filling-kit-p26094-74374_thumb.jpg" alt="MacDonald Plumbing Supplies MacVessel Sealed System Filling Kit"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-sealed-system-filling-kit-p26094">MacDonald Plumbing Supplies MacVessel Sealed System Filling Kit</a></p>
<p>The MacVessel Sealed System Filling Kit provides the essential components required for filling and monitoring sealed central heating systems using expansion vessels from 8 to 80 litres. The kit includes a filling loop with two 15mm compression fittings, a 3 bar safety relief valve and gauge, a 3/4 inch manifold, and a red or blue safety valve cap. Supplied as a convenient kit, it helps installers bring the key components together for efficient system installation and servicing. Suitable for use with a range of sealed heating systems and expansion vessel sizes.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-sealed-system-filling-kit-p26094</guid>
              <link>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macvessel-sealed-system-filling-kit-p26094</link>
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              <pubDate>Sun, 11 Oct 2026 02:05:26 +0100</pubDate>
              <title>MacDonald Plumbing Supplies MacShock ½ Water Shock Arrestor - Diaphragm</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/special-offers-c422/macdonald-plumbing-supplies-macshock-water-shock-arrestor-diaphragm-p23453"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/macdonald-plumbing-supplies-macshock-water-shock-arrestor-diaphragm-p23453-67421_thumb.jpg" alt="MacDonald Plumbing Supplies MacShock ½ Water Shock Arrestor - Diaphragm"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/special-offers-c422/macdonald-plumbing-supplies-macshock-water-shock-arrestor-diaphragm-p23453">MacDonald Plumbing Supplies MacShock ½ Water Shock Arrestor - Diaphragm</a></p>
<p>The MacShock 1/2&quot; Water Shock Arrestor - Diaphragm is a compact and efficient device designed to absorb pressure surges and prevent water hammer in plumbing systems. It is particularly useful in systems with water meters, non-return devices, and appliances like dishwashers or washing machines. With WRAS approval, this shock arrestor ensures smooth operation, reduces pipe vibrations, and helps protect boilers and other plumbing components from damage caused by sudden changes in water flow.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/special-offers-c422/macdonald-plumbing-supplies-macshock-water-shock-arrestor-diaphragm-p23453</guid>
              <link>http://www.macdonaldplumbingsupplies.com/special-offers-c422/macdonald-plumbing-supplies-macshock-water-shock-arrestor-diaphragm-p23453</link>
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              <pubDate>Sun, 11 Oct 2026 02:05:26 +0100</pubDate>
              <title>MacDonald Plumbing Supplies MacShock 15mm Water Shock Arrestor - Diaphragm</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macshock-15mm-water-shock-arrestor-diaphragm-p23314"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/macdonald-plumbing-supplies-macshock-15mm-water-shock-arrestor-diaphragm-p23314-67261_thumb.jpg" alt="MacDonald Plumbing Supplies MacShock 15mm Water Shock Arrestor - Diaphragm"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macshock-15mm-water-shock-arrestor-diaphragm-p23314">MacDonald Plumbing Supplies MacShock 15mm Water Shock Arrestor - Diaphragm</a></p>
<p>The MacShock 15mm Water Shock Arrestor - Diaphragm is a highly effective solution for eliminating water hammer and pressure surges in plumbing systems. Its compact size allows for flexible installation in confined spaces, while the internal diaphragm technology efficiently absorbs sudden changes in water flow. This shock arrestor is ideal for use with water meters, non-return valves, and appliances such as dishwashers and washing machines. Fully WRAS approved, it ensures quieter operation and long-term protection for your plumbing network, safeguarding boilers, pipes, and fittings from damage caused by hydraulic shock.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macshock-15mm-water-shock-arrestor-diaphragm-p23314</guid>
              <link>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macshock-15mm-water-shock-arrestor-diaphragm-p23314</link>
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              <pubDate>Sun, 11 Oct 2026 02:05:25 +0100</pubDate>
              <title>MacDonald Plumbing Supplies MacShock ½ Water Shock Arrestor - Diaphragm</title>
              <description><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macshock-water-shock-arrestor-diaphragm-p19053"><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="http://www.macdonaldplumbingsupplies.com/images/macdonald-plumbing-supplies-macshock-water-shock-arrestor-diaphragm-p19053-67259_thumb.jpg" alt="MacDonald Plumbing Supplies MacShock ½ Water Shock Arrestor - Diaphragm"  class="lazyload" /></a>
<p><a href="http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macshock-water-shock-arrestor-diaphragm-p19053">MacDonald Plumbing Supplies MacShock ½ Water Shock Arrestor - Diaphragm</a></p>
<p>The MacShock 1/2&quot; Water Shock Arrestor - Diaphragm is a compact and efficient device designed to absorb pressure surges and prevent water hammer in plumbing systems. It is particularly useful in systems with water meters, non-return devices, and appliances like dishwashers or washing machines. With WRAS approval, this shock arrestor ensures smooth operation, reduces pipe vibrations, and helps protect boilers and other plumbing components from damage caused by sudden changes in water flow.</p></description>
              <guid>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macshock-water-shock-arrestor-diaphragm-p19053</guid>
              <link>http://www.macdonaldplumbingsupplies.com/plumbersessentials-c1401/plumbersessentials-heating-c1759/macdonald-plumbing-supplies-macshock-water-shock-arrestor-diaphragm-p19053</link>
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