Hubbell Bell 5320 2 Single Gang Weatherproof Box 3 1/2 Inch Outlets is for use in branch circuit wiring in wet, damp, or dry locations and may be used as a weatherproof junction box, or as a housing for receptacles, switches, and GFCI s. Internal threads and hubs comply with NEMA requirements. Hubs accept all threaded fittings and threaded conduit. Multi lingual instructions in each package and two closure plugs included.