Introducing the John Guest 15mm Service Valve Pack of 5, a high-quality plumbing fixture that is perfect for all your plumbing needs. Made of durable plastic material, this valve pack is built to last and withstand even the toughest plumbing tasks. With its impressive brand reputation and trusted name, you can be sure that you are getting a reliable and efficient service valve that will deliver optimal performance. Whether you are a DIY enthusiast or a professional plumber, the John Guest Service Valve Pack of 5 is a must-have addition to your plumbing toolkit.