For use with PVC conduitNon-metallic boxes feature 1 in Dia unthreaded conduit openings and include reducers for 3/4 and 1/2 in PVC conduitAn external flange with mounting holes makes them excellent for wall mountingTPV gasket on all Wetguard® covers assures maximum watertight and dust tight seal between device cover and frameOur patent pending modular frame design allows the combining of a variety of 1-gang devices in multi-gang configurations without the need for dedicated 2 and 3-gang cover platesStainless steel device mounting plates facilitate mounting of single receptacles and toggle switches with an 8 in long, 12 AWG ground wire lead1-gang Wetguard® devices and covers fit in any frame position and provide excellent protection from water and dust ingressBoxes feature up to 30% more volume than competitive boxes, making it easier to install devices