Description
Technical Products SP2000 000 Winter Plug, 3/8 inch Pipe
Seal 3/8 inch lines before the first freeze.
The Technical Products SP2000 000 Winter Plug (SKU PST-SP2000) is a rubber expansion plug sized for 3/8 inch pool and spa plumbing. Tightening the wing nut compresses the rubber body so it grips the pipe wall and blocks water from re-entering after the line is blown clear. Use it to winterize small return lines, air relief ports, and pressure-test fittings without dripping or sweating threads.
