30 Amp, 125 Volt, NEMA TT-30R, 2P, 3W, Flush Mtg Receptacle, Straight Blade, Industrial Grade, Grounding, (For Recreational Vehicles), Side Wired, Steel Strap - Black Built of durable thermoplastic, Leviton Power Receptacles — come equipped with heavy-gauge, double-wire copper alloy contacts. To ensure correct and speedy wiring, terminals have ID markings. Flush mount receptacles fit Leviton’s wide range of 2.15”-diameter wallplates and mounting hardware is included.