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The double check valve from Reliance Water Controls ensures prevention of backflow and back-siphonage contamination. It's crafted from DZR brass, featuring EPDM seals, acetyl copolymer check cartridges, and a stainless steel spring. Compact and lightweight, it installs quickly and easily. Designed for all Class 3 contamination risks as per Water Supply (Water Fittings) Regulations 1999, it offers a high flow rate with minimum pressure drop. It operates between 0.1 bar and 16 bar, withstanding temperatures up to 80 degrees Celsius. Durable and reliable, it includes an integral test point for downstream check valve monitoring. Suitable for any Class 3 contamination risk scenario.. Reliance Water Controls Female x Female Brass Double Check Valve - 1 1/4 inch Reliance Water Controls (RWC) FLOW230008