Marine 316 Stainless Steel Deck Filler with Star Pattern Key

- Sealed Protection and Dedicated Safety Lock (Star Pattern Key): The cover features a unique octagonal star-shaped recessed groove in the center. Ordinary tools cannot open it; a dedicated T-shaped star key, included on the right side, must be inserted into the groove to rotate and open. This concealed, flush design not only prevents unauthorized personnel from maliciously tampering with or stealing oil while the vessel is docked, but also avoids tripping over crew members walking on deck due to protruding handles.

- 316 Cast Stainless Steel and Ultimate Corrosion Resistance: Since it is installed directly on the exposed deck surface, it needs to withstand wave action, high-salinity salt spray, and intense UV radiation. The entire product is precision-cast from top-grade 316 stainless steel and mirror-polished, ensuring long-term resistance to rust and discoloration.

- High-Specification Sealing and Anti-Loss/Mistake Prevention:
* O-Ring: A high-specification weather-resistant O-ring is fitted under the threaded cap, providing a perfect waterproof and airtight seal when tightened, completely preventing seawater from seeping into the fuel or freshwater tanks.
* Internal Anti-Loss Chain: A stainless steel security chain typically connects the inside of the cap to the main body to prevent the cap from accidentally falling into the sea during refueling or water filling.

- International Symbols: The flange surface of these deck inlets is usually laser-engraved or cast with clear lettering (such as WATER / FUEL / GAS / DIESEL / WASTE) to prevent crew members from accidentally adding supplies during replenishment.

- Bottom Connector Specifications: The bottom knitted or straight-knitted pagoda connector typically accommodates standard marine-grade oil/water resistant hoses with an outer diameter of 1-1/2 inches (38mm) or 2 inches (50mm).