The Advance Products & Systems night cap 20 inch is in our catalogue: seal material Neoprene, for pipe size 20", for maximum pipe inside diameter 19 3/4".
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In stock
Advance Products & Systems · NIGHT CAP 20 INCH
Advance Products & Systems Night Cap 20 Inch Pipe Plug, Hex Nut, End Of Pipe, 20 Inch Pipe, Neoprene Plug