John Guest Watts Aqualock 1/4-Inch Lever Handle Push-Fit Quick Connect Straight Stop Valve, Pl-3012 Ideal for DIY pipe repair or installation, including plumbing for hot and cold water systemsFast and easy to install; Simply push to connect, with no need for tools or tube insertsHigh-performance stainless steel offers corrosion resistance and long-lasting wearOne-piece construction means no parts to assembleAmong the easiest tools on the market for joining polyethylene, PEX (LDPE, MDPE, HDPE) or soft copper tubing