Tapered Cap & Plug - Inside Diameter Range 11.4 - 13.2 mm | 0.449 - 0.52 in ; Outside Diameter Range 13.5 - 15.5 mm | 0.531 - 0.61 in

Red LDPE Tapered Wide Flange Cap & Plug can cap fittings or plug holes with a 30.0 mm | 1.181 in diameter flange adds protection and prevents pushing the plug through the mating part.