{"product_id":"whale-wx1574b-15mm-quick-connect-water-shut-off-valve","title":"Whale WX1574B 15mm Quick Connect Water Shut-Off Valve","description":"\u003cp class=\"nvn-hero\"\u003eThe Whale WX1574B is a 15mm inline shut-off valve with a female Quick Connect fitting on each end. Push it into your 15mm Whale Quick Connect freshwater run, twist the handle, and you can isolate a single faucet, shower, or water heater for service without draining the whole boat. No tools, no cutting, glass-filled polypropylene that won't corrode.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThe Whale WX1574B is a 15mm inline shut-off valve with a female Quick Connect fitting on each end. Drop it into any run of 15mm Whale Quick Connect tubing and you've got a way to stop the water right there, no tools, no cutting, no fuss. Push the tube home until it seats, twist the handle to close, and that section of plumbing is isolated.\u003c\/p\u003e\n\u003cp\u003eHere's where it earns its keep. Say you need to pull a galley faucet, swap a shower mixer, or service a water heater. Without an isolation valve, you're draining the whole freshwater system and living without water while you work. With one of these upstream of the fixture, you close the valve, work on that one tap, and the rest of the boat stays live. Same story in a caravan or motorhome. It's the difference between a five-minute job and an afternoon.\u003c\/p\u003e\n\u003cp\u003eWhale's Quick Connect system is a push-fit plumbing standard built for boats and RVs. The 15mm size is the common one for freshwater feed lines. Every fitting in the range, the elbows, tees, straight connectors, and valves like this one, uses the same collet-and-o-ring design, so you can build or re-plumb a whole system by hand. No solvent, no crimping, no heat. If you've ever plumbed a boat the old way with barbed fittings and hose clamps, you'll appreciate how much faster this goes.\u003c\/p\u003e\n\u003cp\u003eThe body is glass-filled polypropylene. That matters on the water. Plain polypropylene is fine, but the glass fill stiffens it up so the fitting holds its shape under pressure and doesn't creep over years of pressurized freshwater. It won't corrode the way a metal valve can in a damp, salty bilge, and it shrugs off the sanitizing chemicals you run through the system at the start of the season.\u003c\/p\u003e\n\u003cp\u003eWinterizing is another good reason to have shut-off valves in the right spots. Close off the branches you want to keep dry, blow out or pump antifreeze through the rest, and you've got control over exactly where the water goes. Come spring, open them back up. Because the valve is Quick Connect on both ends, you can also pop it out entirely if you'd rather store a section dry and disconnected.\u003c\/p\u003e\n\u003cp\u003eInstallation is genuinely tool-free. Cut your 15mm tubing square, push it into the Quick Connect collet until it seats, and give it a tug to confirm it's locked. To release, push the collet in and pull the tube back out. The o-ring does the sealing, so there's no tape or dope to mess with. Just make sure the tube end is clean and burr-free before you push it in, because a nicked tube is the usual culprit behind a weep.\u003c\/p\u003e\n\u003cp\u003eWhat people like about push-fit valves once they've lived with them is how little they think about them afterward. Get the tube seated right the first time and the joint just holds. There's no clamp to re-torque after a season of vibration, no fitting to back off when the boat flexes in a chop. On a trailer boat that gets bounced down the highway or a cruiser that pounds through a head sea, that kind of set-and-forget reliability is worth a lot below the sole.\u003c\/p\u003e\n\u003cp\u003eOne thing worth calling out. This version has a female Quick Connect socket on both ends, so it sits inline between two lengths of 15mm tube or between two male fittings. It ships as a single valve. There's no tubing, no extra fittings, and no mounting bracket in the box, so plan your run and grab the connectors you need alongside it.\u003c\/p\u003e\n\u003cp\u003eThis is a freshwater fitting. It's built for the pressurized cold and warm freshwater lines that feed your taps, shower, and water heater, not for waste, fuel, or raw seawater plumbing. If you're running a Whale Quick Connect freshwater system on a boat, camper, or motorhome and you want to isolate a fixture without draining the tank, this is the part you want. Buy one per fixture you'd like to service independently, and future-you will be glad you did.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e15mm female Quick Connect on both ends, sits inline between two lengths of Whale 15mm tubing or between two male fittings\u003c\/li\u003e\n  \u003cli\u003ePush-fit installation, no tools, no cutting, no crimping, and no thread tape needed\u003c\/li\u003e\n  \u003cli\u003eGlass-filled polypropylene body, stiffer than plain polypropylene and won't corrode in a damp, salty bilge\u003c\/li\u003e\n  \u003cli\u003eQuarter-turn handle isolates the line so you can service one fixture without draining the whole freshwater system\u003c\/li\u003e\n  \u003cli\u003ePart of the Whale Quick Connect 15mm range, mixes with the same elbows, tees, and connectors by hand\u003c\/li\u003e\n  \u003cli\u003eFreshwater rated for the cold and warm pressurized lines feeding taps, showers, and water heaters\u003c\/li\u003e\n  \u003cli\u003eReleasable collet lets you pop the valve out for storage or to reroute a section\u003c\/li\u003e\n  \u003cli\u003eShips as a single valve, one per fixture you want to isolate independently\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Whale Marine reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is Whale Quick Connect?\u003c\/summary\u003e\n    \u003cp\u003eIt's Whale's push-fit plumbing system for boats and RVs. The fittings, tubing, and valves in the range share the same collet-and-o-ring design, so you assemble a freshwater system by hand with no solvent, crimping, or heat. This valve is the 15mm size in that system.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo I need any tools to install this valve?\u003c\/summary\u003e\n    \u003cp\u003eNo. Cut your 15mm tube square, push it into the Quick Connect socket until it seats, and give it a tug to confirm it's locked. To release, push the collet in and pull the tube out. There's no tape or thread dope involved, the o-ring does the sealing.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat size tubing does it fit?\u003c\/summary\u003e\n    \u003cp\u003eIt's built for 15mm Whale Quick Connect tubing and fittings. Both ends are 15mm female Quick Connect sockets, so it sits inline between two lengths of 15mm tube or between two male fittings.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat does female quick connect on both ends mean?\u003c\/summary\u003e\n    \u003cp\u003eA female Quick Connect end is the socket that a tube or male fitting pushes into. With female sockets on both sides, this valve accepts a 15mm tube or male fitting from either direction, so it drops straight into a run without an adapter.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is this valve for?\u003c\/summary\u003e\n    \u003cp\u003eIt isolates a section of freshwater plumbing. Fit it upstream of a faucet, shower mixer, or water heater and you can shut off that one fixture for service or repair without draining the whole system or cutting water everywhere else on board.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I use it to help winterize?\u003c\/summary\u003e\n    \u003cp\u003eYes. Shut-off valves let you close the branches you want to keep dry while you blow out or pump antifreeze through the rest. Because both ends are Quick Connect, you can also pop the valve out entirely to store a section disconnected.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is it made of and will it hold up?\u003c\/summary\u003e\n    \u003cp\u003eThe body is glass-filled polypropylene. The glass fill stiffens the plastic so it keeps its shape under pressure over the years, and it won't corrode the way a metal valve can in a damp, salty bilge. It also stands up to the sanitizing chemicals you run through a freshwater system.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre all quick connect fittings the same?\u003c\/summary\u003e\n    \u003cp\u003eNo, push-fit systems are sized and keyed to their own standard. This valve is designed to mate with the Whale Quick Connect 15mm range, so pair it with 15mm Whale tubing and fittings for a proper seal rather than mixing fitting types.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat comes in the box?\u003c\/summary\u003e\n    \u003cp\u003eJust the single valve. There's no tubing, extra fittings, or mounting bracket included, so plan your run and pick up the 15mm connectors you need alongside it.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eWhale WX1574B 15mm Quick Connect Shut-Off Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eWhale Marine\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003eWX1574B\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e766478157478\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eShut-Off Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eConnection Type\u003c\/th\u003e\n\u003ctd\u003eFemale Quick Connect\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eConnection Size\u003c\/th\u003e\n\u003ctd\u003e15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003ctd\u003e15mm Female Quick Connect x 15mm Female Quick Connect\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eGlass Filled Polypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003ctd\u003eSingle\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePlumbing System\u003c\/th\u003e\n\u003ctd\u003eWhale Quick Connect (15mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eFreshwater\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is Whale Quick Connect?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's Whale's push-fit plumbing system for boats and RVs. The fittings, tubing, and valves in the range share the same collet-and-o-ring design, so you assemble a freshwater system by hand with no solvent, crimping, or heat. This valve is the 15mm size in that system.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Do I need any tools to install this valve?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. Cut your 15mm tube square, push it into the Quick Connect socket until it seats, and give it a tug to confirm it's locked. To release, push the collet in and pull the tube out. There's no tape or thread dope involved, the o-ring does the sealing.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What size tubing does it fit?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's built for 15mm Whale Quick Connect tubing and fittings. Both ends are 15mm female Quick Connect sockets, so it sits inline between two lengths of 15mm tube or between two male fittings.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What does female quick connect on both ends mean?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"A female Quick Connect end is the socket that a tube or male fitting pushes into. With female sockets on both sides, this valve accepts a 15mm tube or male fitting from either direction, so it drops straight into a run without an adapter.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is this valve for?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It isolates a section of freshwater plumbing. Fit it upstream of a faucet, shower mixer, or water heater and you can shut off that one fixture for service or repair without draining the whole system or cutting water everywhere else on board.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I use it to help winterize?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. Shut-off valves let you close the branches you want to keep dry while you blow out or pump antifreeze through the rest. Because both ends are Quick Connect, you can also pop the valve out entirely to store a section disconnected.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is it made of and will it hold up?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The body is glass-filled polypropylene. The glass fill stiffens the plastic so it keeps its shape under pressure over the years, and it won't corrode the way a metal valve can in a damp, salty bilge. It also stands up to the sanitizing chemicals you run through a freshwater system.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Are all quick connect fittings the same?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No, push-fit systems are sized and keyed to their own standard. This valve is designed to mate with the Whale Quick Connect 15mm range, so pair it with 15mm Whale tubing and fittings for a proper seal rather than mixing fitting types.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What comes in the box?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Just the single valve. There's no tubing, extra fittings, or mounting bracket included, so plan your run and pick up the 15mm connectors you need alongside it.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Whale Marine","offers":[{"title":"Default Title","offer_id":45078467018845,"sku":"2009876","price":24.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_cc04331f-ba91-4fab-96d1-421dcc5948c5.png?v=1789933876","url":"https:\/\/nvnmarine.com\/products\/whale-wx1574b-15mm-quick-connect-water-shut-off-valve","provider":"NVN Marine","version":"1.0","type":"link"}