Stainless Steel 316 Deck Filler – 38 mm (Fuel & Water Cap Set)

Code:

00933-FUEL

A set of two 38 mm deck fillers made of polished AISI 316 stainless steel – one labeled for Fuel and one for Water. These deck fill caps provide secure, leak-free access points for filling your boat’s fuel tank and water tank. Each filler has a screw-cap with an O-ring seal and comes with an integrated deck flange (fits into a standard 38 mm hose). The caps are clearly engraved (“FUEL” and “WATER”) to prevent cross-contamination. A chain tether keeps the cap attached to the deck fitting when open, so it won’t be lost overboard. With their 316 stainless construction, these fillers are highly corrosion-resistant (safe for gasoline, diesel, and potable water) and add a sleek look to your deck. The 38 mm (1-1/2") neck size fits common hose sizes for fuel fill and water fill lines on most boats.

Material: Cast AISI 316 stainless steel – mirror polished, corrosion-proof, suitable for petroleum fuels and drinking water
Size: 38 mm (1.5") hose connection, standard deck fill size for many tanks
Features: Screw-top cap with rubber O-ring, safety chain on cap, “Fuel” and “Water” labels on caps for identification
Use: Deck filler for fuel tank (gasoline or diesel) and fresh water tank on boats – provides easy filling and secure sealing

Diameter: 38 mm - FUEL 38 mm - WATER

Price: 72⁰⁰лв. €36.81

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0.500 Kgs

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These 38 mm deck fillers are essential deck hardware for managing your boat’s consumables. Fuel Deck Filler: The fuel filler cap is typically mounted on the deck or gunwale near the fuel tank. With “Fuel” marked on the cap, fueling personnel and boat owners can immediately recognize it, preventing any costly mix-ups. The cap screws into the deck flange and compresses an O-ring, ensuring gasoline or diesel fumes and splashes stay contained. The stainless steel construction stands up to exposure from fuel and weather without degrading; unlike plastic caps, it won’t crack or cross-thread easily. The included chain prevents the cap from falling – a great feature when refueling at sea or in low-light conditions. Water Deck Filler: Similarly, the water filler (marked “Water”) provides a fill point for the freshwater tank. Using stainless steel here is particularly beneficial as it’s hygienic and won’t impart taste to drinking water. Both fillers have a flush, low-profile design with a slot or keyhole on top; they usually open with a special key or a flat screwdriver for security (to deter tampering). Installation requires cutting a hole of the appropriate diameter, inserting the filler, and securing it from below with screws (some designs have a threaded body and nut, others use 3-4 screws through the flange). You’ll attach your 38 mm (1-1/2") fuel fill hose or water hose underneath with a hose clamp onto the neck of the filler – the filler’s barbed or ribbed neck ensures the hose stays put. Maintenance is minimal: periodically inspect the O-ring on each cap (replace if cracked or worn to maintain a good seal) and rinse the caps/flanges with fresh water to avoid salt build-up. The mirror-polished finish can be kept shiny with stainless polish if desired, matching other deck fittings like cleats and vents. Using these high-quality 316 stainless fillers provides peace of mind: you have robust, reliable fill points that won’t leak when closed and won’t corrode over time. Whether you’re fueling up for a long voyage or filling the water tank for a weekend trip, these deck fillers make the process smooth and safe, and they look great on your deck doing it.