IDEAL, Wire Connector, Wire-Nut, High Temperature Twist-On, Number Of Conductors: 1 to 5, Environmental Conditions: Tough, UL 94V-0 Flame-Retardant Shell Rated At 150 DEG C (302 F), Conductor Range: 22 - 14 AWG, Min 1 -18 w/ 1-20, MAX 4-16 w/ 1-20, Material: THERMOPLASTIC POLYESTER, Color: Black, Voltage Rating: 600 V, Model Number: 73B, Width: 7/16 IN, Height: 55/64 IN