Sea Dog Waste 1-1/2" Deck Fill- Stainless SteelThis Sea Dog Waste Desk Fill is constructed of corrosion-resistant, investment-cast 316 stainless steel. Features a slotted cap which requires a key to open and close for extra security.Features: Cap thread: 1-1/4" - 11-1/2 NPSM - Straight; "Waste" is molded into the plate of fill neck; 316 Stainless steel construction; Slotted cap requiring key; Installs with three #10 FH fasteners (not included).Dimensions: A: 1-1/2" Hose; B: 3"; C: 3";