Deluxe weatherproof covers for FS/FD boxes - die cast aluminum receptacle covers. UL listed for wet locations (cover closed) and damp locations (cover open or closed). Meets 2008 NEC 406.8 (A) and 406.8 (B)(2). Die cast copper-free aluminum with epoxy finish provides maximum corrosion resistance. Self-closing spring door assures full protection. EPDM gasketing material on WLRD1 and WLRS1 provide excellent resistance to ozone, weathering and temperatures from -50 to 260 deg F. Single receptacle WLRS1 (1.38 in Dia face) WLRS2 (1.56 in Dia face) duplex receptacle WLRD1 adapter, flush mounts above covers to standard boxes WLRA1.