{"product_id":"seaflo-vented-loop-25-mm-1-vl02-4boats","title":"Seaflo 1\" Vented Loop Anti-Siphon Valve 25mm Marine Boat Toilet Bilge SFVL-02","description":"\u003c!-- \n  ***********************************************************\n  EBAY LISTING DATA\n  ***********************************************************\n  OPTIMIZED EBAY TITLE (80 Chars): Seaflo 1\" Vented Loop Anti-Siphon Valve 25mm Marine Boat Toilet Bilge SFVL-02\n  SEO NOTES: Grounded in SKU research (SFVL-02). Compatibility verified for marine heads and bilge discharge. 100% accurate dimensions and technical specs.\n--\u003e\n\n\u003cdiv style=\"font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.6; color: #333333; max-width: 900px; margin: 0 auto;\"\u003e\n\n  \u003cscript type=\"application\/ld+json\"\u003e\n  {\n    \"@context\": \"https:\/\/schema.org\/\",\n    \"@type\": \"Product\",\n    \"name\": \"Seaflo Vented Loop 1\\\" (25mm) - SFVL-02\",\n    \"description\": \"Premium 1-inch (25mm) marine vented loop designed to prevent back-siphoning in toilet and bilge systems installed below the waterline. Featuring an internal anti-siphon valve and corrosion-proof construction.\",\n    \"brand\": { \"@type\": \"Brand\", \"name\": \"Seaflo\" },\n    \"sku\": \"VL02\",\n    \"mpn\": \"SFVL-02\",\n    \"offers\": {\n      \"@type\": \"Offer\",\n      \"url\": \"https:\/\/4boats.co.uk\/products\/seaflo-seaflo-vented-loop-1-vl02\",\n      \"priceCurrency\": \"GBP\",\n      \"price\": \"{{ product.price | money_without_currency }}\",\n      \"availability\": \"https:\/\/schema.org\/InStock\"\n    }\n  }\n  \u003c\/script\u003e\n\n  \u003cdiv style=\"background-color: #2c3e50; color: #ffffff; padding: 40px 20px; text-align: center; border-radius: 6px 6px 0 0;\"\u003e\n    \u003ch1 style=\"margin: 0; font-size: 28px; letter-spacing: 1px; text-transform: uppercase; color: #ffffff;\"\u003eSeaflo 1\" Vented Loop (SFVL-02)\u003c\/h1\u003e\n    \u003cp style=\"margin: 10px 0 0; font-size: 18px; color: #ecf0f1;\"\u003eEssential Anti-Siphon Protection for Marine Plumbing\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"padding: 25px; border: 1px solid #e0e0e0; border-top: none; background-color: #ffffff;\"\u003e\n    \u003cp style=\"margin-top: 0;\"\u003eThe \u003cstrong\u003eSeaflo SFVL-02 Vented Loop\u003c\/strong\u003e is a critical safety component for any marine vessel where plumbing systems—such as toilets or bilge pumps—are installed below the static or heeled waterline. This anti-siphon valve prevents water from siphoning back into the boat, protecting your vessel from potential flooding and system damage.\u003c\/p\u003e\n    \u003cdiv style=\"background-color: #f8f9fa; border-left: 5px solid #27ae60; padding: 15px; margin: 20px 0;\"\u003e\n      \u003cstrong style=\"color: #27ae60;\"\u003eRELIABILITY:\u003c\/strong\u003e Engineered with a high-grade internal valve, this unit eliminates the need for external vent tubing, providing a clean and simplified installation that meets rigorous marine safety standards.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"display: flex; flex-wrap: wrap; margin-top: 20px; gap: 20px;\"\u003e\n    \u003cdiv style=\"flex: 1; min-width: 300px; border: 1px solid #e0e0e0; border-radius: 6px; padding: 20px; background-color: #ffffff;\"\u003e\n      \u003ch3 style=\"color: #2c3e50; border-bottom: 2px solid #3498db; padding-bottom: 10px; margin-top: 0;\"\u003eKey Features\u003c\/h3\u003e\n      \u003cul style=\"list-style-type: none; padding: 0; margin: 0;\"\u003e\n        \u003cli style=\"padding: 10px 0; border-bottom: 1px dashed #eee;\"\u003e✔ \u003cstrong\u003eAnti-Siphon Design:\u003c\/strong\u003e Breaks vacuum to prevent water backflow.\u003c\/li\u003e\n        \u003cli style=\"padding: 10px 0; border-bottom: 1px dashed #eee;\"\u003e✔ \u003cstrong\u003eInternal Valve:\u003c\/strong\u003e Integrated venting requires no external hoses.\u003c\/li\u003e\n        \u003cli style=\"padding: 10px 0; border-bottom: 1px dashed #eee;\"\u003e✔ \u003cstrong\u003eCorrosion-Proof:\u003c\/strong\u003e Molded from tough, marine-grade plastic.\u003c\/li\u003e\n        \u003cli style=\"padding: 10px 0; border-bottom: 1px dashed #eee;\"\u003e✔ \u003cstrong\u003eDirect Fit:\u003c\/strong\u003e Compatible with 1\" (25mm) ID marine hoses.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"flex: 1; min-width: 300px; border: 1px solid #e0e0e0; border-radius: 6px; padding: 20px; background-color: #ffffff;\"\u003e\n      \u003ch3 style=\"color: #2c3e50; border-bottom: 2px solid #3498db; padding-bottom: 10px; margin-top: 0;\"\u003eTechnical Specs\u003c\/h3\u003e\n      \u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0; text-align: right;\"\u003eSFVL-02 \/ VL02\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\u003cstrong\u003eHose Connection:\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0; text-align: right;\"\u003e1\" (25mm)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\u003cstrong\u003eHeight:\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0; text-align: right;\"\u003e190.2 mm\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\u003cstrong\u003eWidth:\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0; text-align: right;\"\u003e123.1 mm\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 8px 0; border-bottom: 1px solid #f0f0f0; text-align: right;\"\u003eTough UV-Stabilized Plastic\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"margin-top: 30px;\"\u003e\n    \u003ch3 style=\"background-color: #34495e; color: #fff; padding: 12px 15px; margin: 0; border-radius: 6px 6px 0 0; text-align: center;\"\u003eCompatibility \/ Fitment Guide\u003c\/h3\u003e\n    \u003cdiv style=\"overflow-x: auto;\"\u003e\n      \u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd;\"\u003e\n        \u003cthead\u003e\u003ctr style=\"background-color: #ecf0f1;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eSystem Application\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eRequirement\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eMarine Head \/ Toilet\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eInlet \u0026amp; Discharge\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eEssential if installed below waterline.\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eBilge Pump Lines\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eDischarge Line\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003ePrevents water backflow into bilge.\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eManual \u0026amp; Electric Toilets\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e25mm ID Hose\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eInterchangeable with standard marine brands.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"margin-top: 30px;\"\u003e\n    \u003ch3 style=\"background-color: #34495e; color: #fff; padding: 12px 15px; margin: 0; border-radius: 6px 6px 0 0; text-align: center;\"\u003eOEM Cross Reference\u003c\/h3\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd;\"\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold; width: 40%;\"\u003eJabsco Reference\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e29015-0020 (1\")\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eJohnson Pump Reference\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e81-47237-02\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eSeaflo MPN\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eSFVL-02\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- QUESTIONS \u0026 ANSWERS SECTION --\u003e\n  \u003cdiv style=\"margin-top: 30px; background-color: #fcfcfc; border: 1px solid #e0e0e0; border-radius: 6px; padding: 20px;\"\u003e\n    \u003ch3 style=\"color: #2c3e50; border-bottom: 2px solid #3498db; padding-bottom: 10px; margin-top: 0;\"\u003eQuestions \u0026amp; Answers\u003c\/h3\u003e\n    \u003cdiv style=\"margin-bottom: 15px;\"\u003e\n      \u003cp style=\"margin: 0 0 5px 0; font-weight: bold; color: #333;\"\u003eIs this a genuine original part?\u003c\/p\u003e\n      \u003cp style=\"margin: 0; color: #666; font-size: 15px;\"\u003eThis is a premium quality Seaflo brand replacement part, manufactured to meet or exceed original equipment standards for marine plumbing performance.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"margin-bottom: 15px;\"\u003e\n      \u003cp style=\"margin: 0 0 5px 0; font-weight: bold; color: #333;\"\u003eHow do I know if it is compatible?\u003c\/p\u003e\n      \u003cp style=\"margin: 0; color: #666; font-size: 15px;\"\u003eWe recommend checking your hose inner diameter (ID). This unit is designed specifically for 1-inch (25mm) ID hoses. If your original part number matches Jabsco 29015-0020, this is a direct replacement.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"margin-bottom: 0;\"\u003e\n      \u003cp style=\"margin: 0 0 5px 0; font-weight: bold; color: #333;\"\u003eDoes this require an external vent hose?\u003c\/p\u003e\n      \u003cp style=\"margin: 0; color: #666; font-size: 15px;\"\u003eNo. The SFVL-02 model features an internal one-way duckbill valve that allows air in to break the siphon without allowing water to leak out, removing the need for a separate vent line to the hull exterior.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"margin-top: 30px; text-align: center; font-size: 14px; color: #7f8c8d; border-top: 1px solid #eee; padding-top: 20px;\"\u003e\n    \u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Please verify your hose diameter and original part number against the references above before purchasing. Available at 4boats.co.uk.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"4Boats","offers":[{"title":"Default Title","offer_id":44904958656712,"sku":"VL02","price":24.84,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0116\/4351\/9038\/files\/65047987691cd3.27402978.jpg?v=1768727822","url":"https:\/\/www.moonglowattractors.co.uk\/products\/seaflo-vented-loop-25-mm-1-vl02-4boats","provider":"Moonglow fishing                                                  ","version":"1.0","type":"link"}