The quick-connect Watts PL-3030, 1/2 in, Push Fit, 3 in L, 150 70, 60 PSI at 140 F, 70-140 Deg Fw Coupling Union lets you efficiently connect water lines without the use of tools. Constructed of a high-performance plastic fitting product called polysulfone, Watts AquaLock Plastic fittings are designed to be trouble-free for years. A locking clip and zero-leak patented O-ring guide provide connection security. Fitting rotates under pressure. Meets all National Plumbing codes. Includes 25-year limited warranty.