Marine Boat Water Deck Fills of 2025
Best Choice1
AquorAquor Marine Deckwash, Easy Installation Water Deck Fill for Boats, Hydrant with Quick Connector for Boat Washdown Hose, Stainless Steel Flush-Mount, Check Valve, ½” NPT (f) x ¾” GHT (m)
Main highlights- Professional Grade Materials: Manufactured with 100% lead-free, corrosion-resistant 316L stainless steel. Complemented by crush-proof, military-grade acetal polymer. Upgrade boat hose washdown to a more reliable, long-lasting solution.
- Limited Lifetime Warranty: All of Aquor's hydrants are backed by a limited lifetime warranty, offering decades of maintenance-free use. All other accessories and parts for the boat washdown kit have a limited 5-year warranty.
- Leak-Free Quick-Connect: The hydrant is locked even without a hose connector. Simply push and twist for instant, reliable water access, under full pressure. Attach a connector to all of your hoses and accessories to instantly wash boat deck hardware.
- Elevated Water Access: Perfect for boats, yachts, and more. Easily fill water tanks or wash your vessel by quickly connecting a marine washdown hose. Convenient washdown label on the hydrant's faceplate for straightforward viewing and use.
- Easy Installation: This boat wash kit is designed for simple installation with required plumbing knowledge and tools. Common 1/2 inch NPT (f) inlet x 3/4” GHT (m) outlet. Install the flush-mount system vertically, horizontally, or even upside down.
9.7Exceptional
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Value for Money2
keehuikeehui Mirror- Polished 316 SS for 2''(50MM) Marine Boat Yacht Caravan Water Tank Deck Fill/Filler with Keyless Cap
Main highlights- Water Tank horse O.D:2"(50MM) the detail size refer to the left picture
- Name plate with "water" letter on the filler face, fasterner not include
- Convenient, keyless design - lift built-in tab on cap and turn to open or close.
- Complete with stainless steel retaining chain, to avoid losing or misplacing cap
- Cap contains a high grade O-ring seal
9.6Exceptional
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3
ISURE MARINEISURE MARINE Boat Water Deck Fill/Filler with Keyless Cap 1-1/2" Marine Mirror- Polished 316 Stainless Steel Hardware for Boat Yacht Caravan 1-1/2" 38mm
Main highlights- WATER Tank horse O.D:1-1/2"(38MM) the detail size refer to the left picture;Cap contains a high grade O-ring seal.
- Name plate with "WATER " letter on the filler face,Easy to view and use.
- Material:Deck Fill/Filler is cast from marine grade stainless steel 316, the surface is hand mirror polished,the surface is smooth and beautiful.Lost wax process and cover surface polished
- Convenient, keyless design - lift built-in tab on cap and turn to open or close.The product is simple and convenient to use
- Complete with stainless steel retaining chain, to avoid losing or misplacing cap
9.3Excellent
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4
CNRAQRCNRAQR 1-1/2"(38mm) Boat Gas/Fuel/Diesel/Water/Waste Deck Fill/Filler with Key Cap Tank Key Cap Marine Mirror-Polished 316 Stainless Steel Hardware for Boat Yacht Caravan
Main highlights- WATERPROOF DESIGN: The boat deck fill/filler neck for decks provides waterproofing to prevent water from entering the deck storage space. Equipped with a key, the filler neck can be locked to ensure that water or dirt cannot enter. Using the key to insert and rotate the hole, the tank cap can be easily removed to add water
- SIMPLE AND EASY TO USE: This water deck fill cap is equipped with a built-in carabiner, making it easy to open or close the lid. Stainless steel retaining chain prevents the lid from being lost or misplaced. Easy to install, fits standard size marine fuel filler neck holes, no extra tools required
- PERFECT SEALING PERFORMANCE: Stainless steel material and professional airtightness test ensure the sealing performance of the fuel water deck fill, avoiding the problem of oil or water leakage. The cap is equipped with a stainless steel chain to prevent loss and provide better sealing
- MULTIPLE APPLICATION SCENARIOS: The fuel tank filler neck for decks is not only suitable for boats, but also can be used for yachts, RVs, trucks and other various occasions. The surface of the product is highly polished, corrosion-resistant, sun-proof and waterproof, which is not only durable but also has a flashy appearance
- CORROSION RESISTANT HIGH QUALITY MATERIALS:Our water deck fill is made of 316 stainless steel, which has excellent corrosion and wear resistance, prolonging its service life. The stainless steel material and polished surface effectively prevent rusting, ensuring good appearance and performance in all environments
9.1Excellent
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5
NRC&XRCNRC&XRC 1-1/2"(38mm) Boat Water Deck Fill/Filler with Keyless Cap Marine 316 Stainless Steel Hardware for Boat Yacht Caravan
Main highlights- Screw off Top plate. 74mm/2.91inch Dia, with pull out lug ( for screwing off with ease),safety chain.
- O.D.： 1-1/2" (38mm) Height:3.31Inch（84mm）
- Material:AISI 316 Stainless Steel
- Lost wax process and cover surface polished
- Fastener Dia: Φ6
9.0Excellent
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6
SHENGHUISSSHENGHUISS Boat Deck Water Fill/Filler 1-1/2 Inch(38mm) with Keyless Flip A Cap 316 Stainless Steel Boat Deck Hardware for Boat, Yacht, Caravan
Main highlights- Water Deck Fill/Filler is cast from marine grade stainless steel 316, the surface is hand mirror polished,the surface is smooth and beautiful.Recess flush to deck for contemporary look
- Water Deck Fill/Filler Silica sol precision casting, integrated casting, each product undergoes 3 quality inspection procedures, product size quality inspection, product salt spray test, product infrared spectrum test, to ensure excellent quality
- The outer diameter of the Water Deck Filler Tank tube is 1-1/2 “(38.8mm). The outside diameter of the flange is 76 mm. The center of the screw holes are 8mm from the outer edge of the flange. Each screw is 50mm from each other in a triangular pattern
- Package Includes:1 piece Water Deck Filler,3 pieces screws,1 piece rubber Spare O-Ring,1 piece spare Rubber Gasket
- Convenient, keyless design - lift built-in tab on cap and turn to open or close.The product is simple and convenient to use
8.7Very Good
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7
ISURE MARINEISURE MARINE 2"(50mm) Boat Water Deck Fill/Filler with Keyless Cap 2" Marine Mirror- Polished 316 Stainless Steel Hardware for Boat Yacht Caravan
Main highlights- WATER Tank horse O.D:2"(50MM) the detail size refer to the left picture
- Name plate with "WATER" letter on the filler face,Easy to view and use.
- Material:AISI 316 Stainless Steel; Lost wax process and cover surface polished
- Convenient, keyless design - lift built-in tab on cap and turn to open or close.
- Complete with stainless steel retaining chain, to avoid losing or misplacing cap
8.5Good
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8
NRC&XRCNRC&XRC New Casting 1-1/2"(38mm) Boat Water Deck Fill/Filler with Key Cap Water Marine 316 Stainless Steel Hardware for Boat Yacht Caravan
Main highlights- Screw off Top plate with metal word WATER: 74mm/2.91inch Dia, ,safety chain.
- Material:AISI 316 Stainless Steel
- Lost wax process and surface polished
- I.D.： 1-1/2" (38mm) Height:3.35inch（85mm） the detail size pls refer to the left picture.
- Fastener Dia: Φ6.5mm
8.4Good
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9
OUKENSOUKENS 1-1/2"(38mm) Boat Gas/Fuel/Diesel/Water/Waste Deck Fill/Filler with Keyless Cap 1-1/2" Marine Mirror- Polished 316 Stainless Steel Hardware for Boat Yacht Caravan
Main highlights- Wide Application: 38mm marine water injection port can be widely used in yachts, fishing boats, speedboats and RVs to meet your different needs.
- Premium Material: 1.5in boat gas deck fill is made of 316 stainless steel material, mirror polished, marine boat fuel cap not easy to rust in salt water environment, antioxidation, so it will last longer.
- Leak Proof: Boat gas filler has a lid that contains an O ring seal. The stainless steel boat fuel cap edge design can effectively prevent fuel spills or drips from dirtying the deck.
- Good Performance: Boat gas deck fill with keyless cap is Precision castings, refined appearance, sturdy construction, boat 1-1/2 fuel filler cap continuous protection against high voltage surges.
- Convenient Keyless Design: 1-1/2 fuel fill of rotate the inner handle on the lid and turn to open or close. Marine fuel cap comes with a stainless steel retaining chain to avoid losing or misplacing cap.
8.1Good
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10
NRC&XRCNRC&XRC New Casting 2"(50mm) Boat Water Deck Fill/Filler with KeyCap Marine Grade316 SS Hardware for Boat Yacht Caravan,RV
Main highlights- Screw off Top plate with metal letter WATER:80mm/3.15inch Dia, safety chain.
- O.D.：2" (50mm) Height:3.3inch（84mm） the detail size pls refer to the left picture.
- Material:AISI 316 Stainless Steel
- Lost wax process and surface polished
- Fastener Dia: Φ5.5 mm
8.0Good
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