The APOLLOXPRESS® 8771 large Dia press 150lb companion flange features a lead-free dezincification resistant copper body, a patented stainless-steel solid cross-section grab ring, a nylon separation ring and an EPDM O-ring. The black powder coating provides separation of dissimilar metals preventing electrolysis. Our large Dia APOLLOXPRESS® products are manufactured utilizing proven ASTM materials and standards. Proudly made in the USA.