Rubber Winterizing Expansion Plug 1.25" Fitting, 1.5" Pipe, Plug Size 9 Go to amazon.com Related posts Where to find expansion plug 2 inch? FeatureSeal Skimmer and Plumbing LinesWinterize Without DrainingCorrosion Resistant Description-Designed to fit securely into return and drain inlets -Prevents water entry during the winter freeze