Filling Loops from MacDonald Plumbing & Heating Supplies http://www.macdonaldplumbingsupplies.com/rss/1/productlistings_rss/c2148::15mm:lever:valve Copyright 2026 MacDonald Plumbing & Heating Supplies en Mon, 12 Oct 2026 02:05:05 +0100 Mon, 12 Oct 2026 02:05:05 +0100 Mon, 12 Oct 2026 02:05:05 +0100 MacDonald Plumbing Supplies MacValve 15mm WRAS Filling Loop Part L MacDonald Plumbing Supplies MacValve 15mm WRAS Filling Loop Part L

MacDonald Plumbing Supplies MacValve 15mm WRAS Filling Loop Part L

The MacValve 15mm WRAS Filling Loop Part L is a reliable and compliant solution for refilling and maintaining pressure in domestic and commercial heating systems. Designed to meet Part L regulations and fully WRAS approved, it ensures safe operation while preventing backflow contamination. Suitable for use with boilers and other pressurised systems, this filling loop offers a straightforward and dependable method for topping up system pressure.

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