Woodhead 3000F Super-Safeway Outlet Box, Standard Depth, Feed-Thru, MAX-LOC F2 1/2" Cord Grip, NEMA 5-15 Configuration, 15A Current, 120V Voltage NEoTEX Paracril OZO rubber portable outlet boxes yield the best performance for abrasion, chemical exposure and temperature extremes Industrial duty, duplex receptacles yield long-term performance Two-piece cord-clamp strain relief to firmly secure the cord as standard, or select a MAX-LOC cord grip together with weather resistant flip lids for increased protection Manual reset GFCI protection complete with an open neutral sensing relay (contained within the back side) is an available option to protect personnel Also select a ground continuity monitor light to ensure good ground from power source