{"product_id":"replacement-deck-fill-cap-red-354-3570901","title":"Sea-Dog Red Clam Shell Deck Fill Replacement Cap – 1-1\/4\" NPSM (357090)","description":"\u003cp\u003eThe \u003cstrong\u003eSea-Dog 357090 Red Clam Shell Deck Fill Replacement Cap\u003c\/strong\u003e is a color-coded replacement cap for compatible Sea-Dog clam shell deck fill fittings. The red cap designates the \u003cstrong\u003egasoline\u003c\/strong\u003e fill point — an important safety convention on multi-fill boats to prevent misfuelling. The 1-1\/4\" x 11-1\/2 NPSM straight thread provides a secure, water-tight closure at the deck fill.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRed color coding — designates gasoline fill point per marine safety convention\u003c\/li\u003e\n\u003cli\u003eClam shell style cap\u003c\/li\u003e\n\u003cli\u003eThread: 1-1\/4\" x 11-1\/2 NPSM straight\u003c\/li\u003e\n\u003cli\u003eReplacement cap for compatible Sea-Dog clam shell deck fill fittings\u003c\/li\u003e\n\u003cli\u003eSKU: 354-3570901\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBest Use Case\u003c\/h2\u003e\n\u003cp\u003eUse this cap to replace a missing or damaged cap on a compatible Sea-Dog clam shell deck fill fitting. On boats with multiple deck fills, maintaining correct color-coded caps is a safety requirement — red for gasoline prevents accidental misfuelling into water or waste tanks. Replace promptly if lost to keep water and debris out of the fill hose.\u003c\/p\u003e\n\n\u003ch2\u003eParts Desk Insights\u003c\/h2\u003e\n\u003cp\u003eThis is a \u003cstrong\u003eclam shell style, gas (red) cap only\u003c\/strong\u003e — confirm your fill body uses the clam shell profile and 1-1\/4\" x 11-1\/2 NPSM straight thread before ordering. For the 357010 series color-coded caps (different fill body style), see the \u003ca href=\"\/products\/cap-for-357010-gas-red-354-3570151\"\u003eSea-Dog Red Gas Deck Fill Cap (357015)\u003c\/a\u003e, \u003ca href=\"\/products\/deck-fill-cap-green-diesel-354-3570161\"\u003eSea-Dog Green Diesel Deck Fill Cap (357016)\u003c\/a\u003e, and \u003ca href=\"\/products\/deck-fill-cap-black-waste-354-3570181\"\u003eSea-Dog Black Waste Deck Fill Cap (357018)\u003c\/a\u003e. For a complete deck fill assembly, see the \u003ca href=\"\/products\/seadog-3570301-gas-deckfill-w-keyless-cap\"\u003eSea-Dog 3570301 Gas Deck Fill with Keyless Cap\u003c\/a\u003e.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51199442092068,"sku":"354-3570901","price":25.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/354-3570901-3570914.jpg?v=1785605479","url":"https:\/\/marisolmarine.com\/products\/replacement-deck-fill-cap-red-354-3570901","provider":"Marisol Marine Company","version":"1.0","type":"link"}