The John Guest 3 Way ASV Valve with 15mm PF x 15mm PF x 3/8" Push Fit connections is the perfect solution for creating a water feed for water filtration systems, water softeners, water coolers, vending machines and more. Features Truly demountable without damage to pipe or fitting Grip and seal connection Reduced installation time (by up to 40%) Lead free and non-toxic Corrosion free with no scale build The updated John Guest ASV Valve features a single piece, plastic ball handle. Previous versions of this valve included a ball arrangement with a chrome-plated screw, washer and handle. This new and improved version has been designed to ensure there is no corrosion or limescale build-up that previously led to the ball valve being difficult to close and open and the handle becoming inoperable