Allstar ALL50805 Red Plastic Fitting Cap for -10AN and 7/8-14 Thread, (Pack of 10) Cap fits size -10an and 7/8-14 thread and is made from high-quality red plastic This cap plug is a must for keeping debris out of lines and hoses. Ideal for keeping internal components of dry sump pumps, fuel pumps, pressure regulators, etc. Clean during storage Cap fits 37 degree flared fittings and straight threaded ports Sold as one set of 10 pieces Backed by a 90-day limited factory warranty