{"product_id":"seachoice-mega-flow-dripless-thru-hull-fitting-316-stainless-steel-fits-1-1-2-in-hose-1-1-2-in-max-hull-50-18631","title":"Seachoice Mega-Flow Dripless Thru-Hull Fitting — 316 SS, 1-1\/2\" Hose, 1-1\/2\" Max Hull (50-18631)","description":"\u003cp\u003eThe Seachoice Mega-Flow Dripless Thru-Hull Fitting is a polished 316 stainless steel through-hull designed for gray-water discharge applications on fiberglass and aluminum hulls up to 1-1\/2 in. thick. Its thin-wall body maximizes water flow while the integrated drip collar on the face prevents unsightly hull streaking. A machined inner bore reduces the chance of debris accumulation, and a watertight gasket is included for a secure, leak-free installation. This is the 1-1\/2 in. hose version — the largest in the Mega-Flow Dripless series — suited for high-volume drain applications on larger vessels.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBest Use Case:\u003c\/strong\u003e Ideal for large cockpit drains, bilge discharge, and high-volume gray-water through-hull applications on mid-to-large vessels requiring a 1-1\/2 in. hose connection. The larger flange (2-3\/8 in.) provides a secure, watertight mount on thicker hull sections. Not recommended for raw-water intake or fuel applications.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e316 polished stainless steel — superior saltwater corrosion resistance\u003c\/li\u003e\n\u003cli\u003eDrip collar prevents hull streaking\u003c\/li\u003e\n\u003cli\u003eThin-wall construction maximizes water flow\u003c\/li\u003e\n\u003cli\u003eMachined inner bore reduces debris accumulation\u003c\/li\u003e\n\u003cli\u003eFits 1-1\/2 in. hose ID\u003c\/li\u003e\n\u003cli\u003eMaximum hull thickness: 1-1\/2 in.\u003c\/li\u003e\n\u003cli\u003eFlange diameter: 2-3\/8 in.\u003c\/li\u003e\n\u003cli\u003eWatertight gasket included\u003c\/li\u003e\n\u003cli\u003ePart No. 50-18631\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eParts Desk Insights:\u003c\/strong\u003e This is the largest hose size in the Mega-Flow Dripless series and is commonly used for main cockpit scuppers on cruising sailboats and larger powerboats. If your application requires a smaller hose barb, the full series is available: \u003ca href=\"\/products\/seachoice-mega-flow-dripless-thru-hull-fitting-316-ss-1-1-8-hose-1-1-2-max-hull-50-18621\"\u003e1-1\/8\" Hose (50-18621)\u003c\/a\u003e, \u003ca href=\"\/products\/seachoice-mega-flow-dripless-thru-hull-fitting-316-ss-1-hose-1-1-2-max-hull-50-18611\"\u003e1\" Hose (50-18611)\u003c\/a\u003e, \u003ca href=\"\/products\/seachoice-mega-flow-dripless-thru-hull-fitting-316-ss-3-4-hose-1-1-2-max-hull-50-18601\"\u003e3\/4\" Hose (50-18601)\u003c\/a\u003e, and \u003ca href=\"\/products\/seachoice-mega-flow-dripless-thru-hull-fitting-316-ss-5-8-hose-1-1-2-max-hull-50-18591\"\u003e5\/8\" Hose (50-18591)\u003c\/a\u003e. Always verify hose ID and hull thickness before ordering. Pair with a compatible seacock or ball valve for a complete through-hull assembly.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51199424167972,"sku":"50-18631","price":72.49,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/50-18631_05.jpg?v=1785605204","url":"https:\/\/marisolmarine.com\/products\/seachoice-mega-flow-dripless-thru-hull-fitting-316-stainless-steel-fits-1-1-2-in-hose-1-1-2-in-max-hull-50-18631","provider":"Marisol Marine Company","version":"1.0","type":"link"}