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Proflex
Shielded couplings are elastomeric sleeves with stainless steel shields for use in joining cast-iron, Schedule 40 plastic, and steel to copper DWV pipe.
Faucet Connector, Stainless Steel, 1/2 FIP x 1/2 FIP x 12-In.
PLUMBEEZE FPT x Poly Insert Adapter
Genova Products Nylon Insert Adapter Male Iron Pipe x Insert
Anderson Metals Pipe Fitting, Nylon Hex Bushing, 3/4 MPT x 3/8-In. FPT
Lasco #37 11/16 X 13/16 X 1/16 R-80 (2PC) O-Ring