Winterizing Plug, 1/2", Plug Size 0 HWP200 Go to amazon.com Related posts Top 7 recommendation winterizing plug 1/2 2022 FeatureTool, Winterizing Plug, 1/2, Plug Size 0. DescriptionRubber Expansion Plug Stainless steel screw & washers nylon wing nut tapered sides allows use in variable openings