The easiest way to join copper, CPVC, or PEX pipe in any combination with no soldering, clamps, unions, or glue. Just insert the pipe and the stainless steel teeth bite down and grip tight, while a specially formulated O-ring compresses to create a perfect seal. Get SharkBite and get a grip on your next plumbing project. Meets AB1953 California & VT S152 vermont low lead restrictions. Size: 3/4″ x 3/4″ Finish: Brass Lead Free 1/4″ turn lever handle For use with PEX tubing & connected with stainless steel cinch clamps & cinch tool ASTM F-876, ASTM F-877 to SDR-9 dimensional standards NSF 14 & 61 for use in potable water systems CSA B137.5 standards NSF CL-R certified for use in hot water systems where chlorinated 140 degree fahrenheit hot water can be constantly re-circulated The wetted surface of this product contacted by consumable water contains less than 1/4 of 1 percent, 0.25%, of lead by weight Meets AB1953 California & VT S152 vermont low lead restrictions.