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Closed Test Plugs
Economical model of the standard plug, uses a nylon stem and wing-nut. Maintains superior sealing properties. Great for winterizing too.
Versatile plug with corrosion free hardware can be used to plug virtually any easily accessible opening.
A 1-1/2" extension between the wing-nut and rubber allows a seal to be made past threads in return lines or main drains. A right angle handle makes for east placement and tightening.
A 6-1/2" extension between the wing-nut and rubber allows a seal to be made deep inside a pipe. Skimmers, cleaner lines, and therapy heads are common applications.