Rubber stop plug, winterizing plug for swimming pools with 38mm to 47mm pipe holes

Size - Plug size: 38 x 47 x 31 mm / 1.5 x 1.85 x 1.22" (Min.D*Max.D*H). Material - Rubber plug for winterizing pool plumbing.

Feature - Stainless steel knob, rust-resistant, durable for extended use.Easy to Use - Knob design for convenient installation and operation.Application - Used as pipe plugs to seal skimmers, returns, and clean lines - to prevent water from entering pipes during the winter.