Featuring rugged PVC or polycarbonate construction, UL-listed marine-rated Boxes, Covers, and Lamp Holders are suited for corrosive or wet outdoor areas. Heavy-duty design ensures complete sealing protection with continuous box-to-cover compression and closed cell foam gasket that prevents dirt, dust, or moisture from entering and damaging electrical devices or wiring. Products are also resistant to heavy impact, mold, extreme heat, and low temperature distortion.