Each valve has a brass body, stem, ball and end cap with an aluminum alloy handle and zinc-plated screw. Its O-ring is made of nitrile butadiene rubber and its seat of PTFE, a synthetic fluropolymer of tetrafluoroethylene.
Check out our 2015 Mechanical Contractor of the Year: McKinstry Co. and our Truck of the Month--The Polite Plumber, Ledgewood, N.J.
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