{"title":"Fuel Line Valves","description":"","products":[{"product_id":"qbp913980","title":"Attwood Marine In-Line Fuel Demand Valve, For 3\/8 in and 5\/16 in Fuel Hose, Manual Override","description":"\u003ch6\u003eOverview\u003c\/h6\u003e\u003cp\u003eThe Attwood Marine 9300FDV7 is an in-line fuel demand valve for portable marine fuel systems that lets fuel move only when the engine is actually pulling it through the line. It installs between the fuel tank and the primer bulb, fits 5\/16 in. and 3\/8 in. fuel hose, and maintains flow up to 125 L\/h with less than 2 kPa restriction.\u003c\/p\u003e\u003cp\u003eOn boats that use sealed portable tanks, pressure can build in the line before startup. This valve helps stop that fuel from being pushed toward the engine too early, which can cut down on flooding, fuel spillage, and the pressurized fuel slug that can hit the engine when the system is already under pressure. It also has a built-in manual override, works with ethanol-blended fuel, and is rated for operating temperatures from -4°F to 176°F with 20 psi nominal input pressure and protection for pressure spikes up to 40 psi.\u003c\/p\u003e\u003ch6\u003eKey features\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003eFits 5\/16 in. and 3\/8 in. fuel hose for straightforward integration into common portable outboard fuel lines\u003c\/li\u003e\n\u003cli\u003eInstalls inline between the fuel tank and primer bulb where pressure control matters most\u003c\/li\u003e\n\u003cli\u003eAllows fuel flow only on engine demand, helping reduce engine flooding and downstream fuel spray\u003c\/li\u003e\n\u003cli\u003eLow restriction of less than 2 kPa at 125 L\/h helps maintain normal startup and running fuel flow\u003c\/li\u003e\n\u003cli\u003eBuilt-in manual override for added control when setting up or servicing the fuel line\u003c\/li\u003e\n\u003cli\u003eComposite body and ethanol-fuel compatibility suit routine marine fuel-system use\u003c\/li\u003e\n\u003cli\u003eEPA-certified and CARB-approved for pressurized portable fuel tank applications\u003c\/li\u003e\n\u003cli\u003eCompatible with OEM engine brands used across common outboard fuel-system setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch6\u003eInstallation and fit\u003c\/h6\u003e\u003cp\u003eThis valve is a practical match for boats that run portable outboard tanks and need an inline valve to manage tank pressure before fuel reaches the engine. The main fit check is hose size and line layout: your system needs 5\/16 in. or 3\/8 in. hose and enough straight run between the tank connection and primer bulb for a clean installation.\u003c\/p\u003e\u003cp\u003eFor day boats, tenders, skiffs, and other small craft that spend time in the sun with fuel left in the line, this type of valve can help keep startup more predictable after the tank has built pressure at the dock or during transport. It also suits owners replacing a worn fuel-line valve and trying to keep fuel handling cleaner around the engine connection.\u003c\/p\u003e","brand":"Attwood Marine","offers":[{"title":"Default Title","offer_id":52023532978357,"sku":"QBP913980","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1329589_qbp913980.jpg?v=1780191862"},{"product_id":"qbp759768","title":"Attwood Marine Integrated Fuel Demand Valve, Below-Deck, Ethanol Compatible","description":"\u003ch6\u003eOverview\u003c\/h6\u003e\u003cp\u003eThe Attwood Marine 99IFDV00-1 is an integrated fuel demand valve for below-deck fuel systems. It keeps tank pressure from pushing fuel into the distribution line when the engine is off, so fuel reaches the engine only when there is actual demand. This version has a built-in manual override and the valve body can be oriented in 12 positions during installation.\u003c\/p\u003e\u003cp\u003eFor fit and system planning, it is rated for operating input pressure up to 138 kPa (20 psi) and protected for a 276 kPa (40 psi) pressure spike. Flow performance is listed at 200 L\/H (53 GPH) at less than 2 kPa when used with a 1\/2 inch pickup tube and matching barb. It is also compatible with ethanol-blended fuels.\u003c\/p\u003e\u003ch6\u003eKey features\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003eIntegrated fuel demand valve for below-deck fuel systems\u003c\/li\u003e\n\u003cli\u003eKeeps tank pressure from pressurizing the fuel distribution line and engine side of the system\u003c\/li\u003e\n\u003cli\u003eBuilt-in manual override for service and setup\u003c\/li\u003e\n\u003cli\u003eValve can be clocked in 12 positions to help with hose routing and tank layout\u003c\/li\u003e\n\u003cli\u003eOperating input pressure up to 138 kPa (20 psi), with protection for a 276 kPa (40 psi) pressure spike\u003c\/li\u003e\n\u003cli\u003eFlow performance up to 200 L\/H (53 GPH) at less than 2 kPa in the stated test setup\u003c\/li\u003e\n\u003cli\u003eCompatible with ethanol-blended fuels\u003c\/li\u003e\n\u003cli\u003eCan eliminate the need for rigid fuel distribution lines in pressure-relief systems under ABYC H-24.15.9\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch6\u003eInstallation and fit\u003c\/h6\u003e\u003cp\u003eThis valve is installed at the tank and uses a 1\/2 inch NPT barb fitting or anti-siphon valve, which is not included. The mounting point should be flat and protected from twisting loads and foot traffic, which matters on boats where the tank bay is tight and service access is limited.\u003c\/p\u003e\u003cp\u003eFor replacement work, confirm the tank base, fitting thread, pickup arrangement, and overall fuel line layout before ordering. After installation, the system should be pressure tested to 3 psi for at least 10 minutes and checked for leaks by a method other than pressure decay.\u003c\/p\u003e\u003ch6\u003eCompatibility and use on board\u003c\/h6\u003e\u003cp\u003eThis valve suits boats with permanently installed below-deck fuel tanks that use pressure-relief fuel system components and need tank pressure controlled before it reaches the engine side of the line. It is a sensible match for builders, service yards, and owners replacing a valve in a compatible Attwood integrated fuel setup where clean hose routing, manual override access, and ethanol fuel compatibility matter.\u003c\/p\u003e","brand":"Attwood Marine","offers":[{"title":"Default Title","offer_id":52581858607285,"sku":"QBP759768","price":58.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1329186_qbp759768.jpg?v=1780200742"},{"product_id":"qbp379632","title":"Attwood Marine Round Vented Gas Deck Fill, Angled, Black Plastic, 1-1\/2 in Fill Hose, 5\/8 in Vent Hose","description":"\u003ch6\u003eOverview\u003c\/h6\u003e\u003cp\u003eThe Attwood Marine 99201GS1 is a vented gas deck fill with a round cap, an angled plastic neck, and hose connections for 1-1\/2 in. fuel fill hose and 5\/8 in. vent hose. It uses a cap made from stainless steel at deck level and an integrated vent arrangement inside the fill body.\u003c\/p\u003e\u003cp\u003eThis part is marked for gasoline service and uses a built-in vent path rather than relying on a separate deck vent fitting. For replacement work, the round cap measures 85 mm, with a 54 mm neck cutout and a 20 mm vent cutout. Installation uses four #8 screws.\u003c\/p\u003e\u003cp\u003eThis version belongs to Attwood's international gasoline deck fill range and is not for U.S. or Canada gasoline applications. That matters when you are matching it to the boat's fuel-system layout and local compliance requirements.\u003c\/p\u003e\u003ch6\u003eKey features\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003eFits standard 1-1\/2 in. fuel fill hose and 5\/8 in. vent hose.\u003c\/li\u003e\n\u003cli\u003eAngled neck helps where the hose run below deck does not line up straight under the fill point.\u003c\/li\u003e\n\u003cli\u003eWaterproof screen in the vent path blocks water from entering through the fill while the tank continues to vent.\u003c\/li\u003e\n\u003cli\u003eIntegral vent includes a flame arrestor and anti-surge feature inside the fill assembly.\u003c\/li\u003e\n\u003cli\u003eRound gasoline cap uses the fuel symbol on top and includes a beaded retaining chain and deck plate key.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch6\u003eCompatibility and fit\u003c\/h6\u003e\u003cp\u003eThis deck fill suits boats already rigged for 38 mm fill hose and 16 mm vent hose, especially when the original hardware used a round fill with the vent built into the filler body. It is a practical match for replacement work on runabouts, center consoles, small cruisers, and sailboats that carry gasoline and need an angled hose entry below deck.\u003c\/p\u003e\u003cp\u003eBefore ordering, check the hose sizes, the deck opening, the screw pattern, and the clearance needed for the angled neck and vent connection. On boats with tight access under side decks or coamings, the angled body can make hose routing easier than a straight fill.\u003c\/p\u003e\u003ch6\u003eInstallation and setup\u003c\/h6\u003e\u003cp\u003eBecause the vent is part of the deck fill, the hose layout below deck needs to stay clean and unrestricted. The fill hose should run to the tank without a sharp pinch point, and the vent hose needs enough rise and space to avoid slow fueling or splash-back at the nozzle.\u003c\/p\u003e\u003cp\u003eThe round cap format keeps the top-side footprint familiar for many replacement jobs, while the stainless cap gives you a hard wearing surface at the deck. If you are replacing an older fill, it is worth checking that the cap can open freely and that the retaining chain has room to hang clear when fueling.\u003c\/p\u003e","brand":"Attwood Marine","offers":[{"title":"Default Title","offer_id":52581868732597,"sku":"QBP379632","price":36.04,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1329229_qbp379632.webp?v=1780200955"},{"product_id":"qbp899660","title":"Attwood Marine Plastic Waste Deck Fill, For 38mm Hose, Scalloped Stainless Steel Cap","description":"\u003ch6\u003eOverview\u003c\/h6\u003e\u003cp\u003eThe Attwood Marine 99202WS1 is a waste deck fill with a plastic neck and a stainless steel cap for boats that use a 38 mm sanitation hose. It is a non-vented fitting, uses a 54 mm deck cutout, and has an 85 mm cap diameter, so the key fit checks are hose size, deck opening, and the flange footprint on the surface of the deck.\u003c\/p\u003e\u003cp\u003eThis fitting is for waste service, not fuel or freshwater, and the cap is marked accordingly to help keep deck fills clearly identified. That matters on boats with more than one fill point, especially when fuel, water, and sanitation access points are grouped in the same area.\u003c\/p\u003e\u003ch6\u003eKey features\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003eWaste deck fill for sanitation pump-out systems.\u003c\/li\u003e\n\u003cli\u003e38 mm hose connection size for matching existing waste hose runs.\u003c\/li\u003e\n\u003cli\u003e54 mm deck cutout requirement for replacement planning or new installation.\u003c\/li\u003e\n\u003cli\u003e85 mm cap diameter for checking flange coverage at the deck surface.\u003c\/li\u003e\n\u003cli\u003ePlastic neck with a stainless steel cap.\u003c\/li\u003e\n\u003cli\u003eNon-vented body for systems where tank venting is handled through a separate vent line.\u003c\/li\u003e\n\u003cli\u003eWaste marking on the cap helps avoid confusion with fuel or water fills.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch6\u003eInstallation and fit\u003c\/h6\u003e\u003cp\u003eOn a replacement job, the practical checks are straightforward: confirm the hose is 38 mm, measure the existing deck opening, and make sure the 85 mm cap will sit cleanly over the area on deck. It also helps to check clearance below the mounting point so the hose can run without a sharp bend right under the fitting.\u003c\/p\u003e\u003cp\u003eThis is a good match for cruisers, fishing boats, and sailboats with an onboard head and holding tank where you need a clearly marked waste pump-out point on deck. If your boat already has a separate tank vent and you are matching a non-vented waste fill in this size, this fitting lines up with that type of setup.\u003c\/p\u003e","brand":"Attwood Marine","offers":[{"title":"Default Title","offer_id":52581868765365,"sku":"QBP899660","price":61.98,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1329230_qbp899660.webp?v=1780200957"}],"url":"https:\/\/www.qualityboatparts.com\/collections\/fuel-line-valves.oembed","provider":"Quality Boat Parts","version":"1.0","type":"link"}