Features stainless steel bolts and washers and large plastic wing-nuts.
#000 Winter Plug for 3/8 Inch Pipe
The rubber expansion plugs are non-corrosive construction made of heavy-duty nylon, stainless steel, and high quality rubber. The wing nut turns easier and provides 50% greater tightness than conventional plugs. Great all around plug to assist with home plumbing needs, swimming pool winterizing, leak stopping, etc.