Backflow Prevention – Single check design protects potable water supplies from contamination. Brass Construction – Solid brass body provides strength, durability, and long service life. Compression Connections – 15mm x 15mm ends allow quick and secure installation without soldering. Hot & Cold Water Ready – Suitable for both hot and cold water systems in domestic and commercial applications. Reliable & Versatile – Ideal for general plumbing, water supply, and pipework protection., Manufacturer: Xcel Home