Smallest wet location/direct burial connector with widest wire range; Accepts 1 #18 w/ 1 #20 to 1 #10 w/ 2 #12 AWG wire combinations; Non-hardening sealant completely seals out moisture to protect fungus and corrosion; Sealant is stable down to -40 deg C; Swept-wing design for comfort; Live-action, square-wire spring; Hexagonal shape for standard nutdriver; No pre-twisting required; UL Listed and CSA Certified; Shell rated for 105 C; Flame-retardant shell.