Anderson Winterizing Duck Plug - 1 1/2 in

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The Anderson Winterizing Duck Plug is a unique winter pool plumbing product that allows pool owners that do not drain the pool, the ability to still winterize the plumbing. The And erson Manufacturing Company has a patented duck bill design, which blocks water from going into return plumbing, but also allows a flow of air to blow out the return line and relieve pressure on the plumbing during the winter. Show more