Anderson Winterizing Duck Plug for 1-1/2" Fitting

Allows plumbing lines to be winterized without draining the pool.

The 'duck-bill' valve allows a large flow of air and water to be blown from the return plumbling BUT does not allow water back into the lines.

Heavy duty rubber is resistant to anti-freeze and other pool chemicals.

Includes safety cap for ice protection.

Double seal system provides a water-tight seal on all 1 1/2" threaded fittings.