Cast Aluminum Weatherproof FS Boxes - 1-Gang FS Boxes. Electrostatically painted with a baked, weather-resistant powder finish for exceptional durability. Accept single gang weatherproof cover and standard FS covers. UL Listed for wet and damp locations with appropriate cover installed. Mounting lugs provide strength and durability on any mounting surface. Raised knockout studs on back of box provide alternative means for wall mounting. Strike desired studs with sharp hammer blow for clean mounting holes. Easy access ground screw hole located inside back wall of box. Threaded outlets for conduit and connectors. Two closure plugs and mounting lugs furnished.