Crafled from 316 non-mognetic stainless steel and 1/2"acrylic, this CE-approved hatch leads the way in traditionalydesigned square hatches. It is rugged, watertight, anddesigned for years of trouble-free operation.FEATURESHand and electro-polished 316 non-magnelic stainless sleel.Injection molded glass filled nylon screw-type closure dogs.Oil resistant neoprene gasketsAdjustable hinges for precise pressure against gasketScratch 'esistant, smoked acrylic lens.CE approved