How much does this cost to the nearest dollar?

Leviton 30 Amp, 125 Volt, NEMA 2P, 3W, Flush MTG Receptacle, Straight Blade, Industrial Grade, Grounding Side Wired, Steel Strap-Black
Built of durable thermoplastic, Leviton power receptacles — come equipped with heavy-gauge, double-wire copper alloy contacts. Flush mount receptacles fit Leviton's wide range of 2.15”- diameter wallplates and mounting hardware is included. For use in recreational vehicles. Warning do not use with single-gang wall boxes, single-gang mud rings or single-gang box extenders. Fits wallplates with 2.15 inch diameter center hole Do not use with single gang wall boxes, single gang mud rings or single gang box extenders Terminals

Price is $11.00

Price: $10.78