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Various
1/2" o.d. Tube quick connect, x 3/8" male pipe thread adapter, for poly or soft copper tubing, not for use with steel or in concealed installations.
STZ Industries 311CCL-12 Galvanized Malleable Iron Fittings Compression Coupling
Faucet Connector, Stainless Steel, 3/8 Compression x 1/2 FIP x 12-In.
Homewerks Stainless Steel Grab Bar
Nylon Male Pipe Thread Insert Adapter, White, 1/2-In. MIP
Lasco #42 3/4 In. x 1 In. O-Ring