How much does this cost to the nearest dollar?

Legrand-Pass & Seymour WPB1 Weatherproof 1 Gang Blank Cover With Gasket & Screws
20a 125V compact Hg Duplex recept. Impact-resistant nylon face.. one-piece heat-treated triple-wipe brass power contacts.. easily accessible break-off line contact connecting tab for split circuit wiring.. corrosion-resistant, zinc-plated steel strap is locked in.. internal screw-pressure-plate back wire and side wire line terminals accept #14 – #10 AWG copper or copper-clad conductors.. Impact-resistant nylon face One-piece heat-treated triple-wipe brass power contacts Easily accessible break-off line contact connecting tab for split circuit wiring Corrosion-resistant, zinc-plated steel strap is locked in Internal screw-pressure-plate back wire and side wire line terminals accept #14 – #

Price is $12.00
Price: $12.5