Sea-Dog Quarter-Turn Smooth Deck Plate w/Internal Collar - White - 4" [336340-1] Marine Plumbing & Ventilation | Fans and one hole plug

and one hole plug

The even flow of water gives better control of hot water temperature especially noticeable with instantaneous gas water heaters and with showers

Locking pull pin offers added mounting strength

Seaward 11 Gallon Hot Water Heater with Rear Heat Exchanger - Stainless Steel - 240V - 1500W

UPC: 035514321891

Sea-Dog Quarter-Turn Smooth Deck Plate w/Internal Collar - White - 4" [336340-1] Marine Plumbing & Ventilation | Fans and one hole plugQuarter Turn Smooth Deck Plate with Internal Collar White 4" The Sea Dog Quarter Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening, jamming, and cross threading. These deck plates also feature an internal, molded in collar on the bottom to hold deck plate bags or other round containers. When installing, use silicone sealant on hull or deck surface. Keep threads clean with hot, soapy water.