The Lew Electric RRP-1-BP is a recessed floor plate with brass plated screw plug cover and adjusting sleeve. Inside the adjusting sleeve is a UL listed 15A-TR-Single Receptacle. The adjusting sleeve is adjustable up to 3/4" to accommodate any floor. The box features a water tight close up screw plug and a durable 1/16" neoprene rubber gasket that goes between the receptacle and plate.