Solid cast 316 . Locking waterproof cap. Easy Lock System. Soft Touch cap stays open in the upright position. 8-way right angle rear safety enclosure. 30 Amp 125V, round, power outlet inlets are solid cast marine grade 316 and include a duty cap strap for strength and durability Robust construction and corrosion-resistance provides long life in the harsh marine environment Technical features are designed to make them easy to install and a pleasure to use for the marine professional or the casual recreational boater.