22-18 AWG Red Nylon Butt Splice Connectors Features Rated for higher temperature and amperages. Electro-tin-plated copper ensures maxmium conducitivty and resistance to corrosion. UL Rated for 105 Degrees C (221 Degree F) UL. Rated for 600 volts , 19A. Size: 1.075in X 0.126in