{"product_id":"brass-pipe-bushing-1-x-3-4-npt-marine-plumbing","title":"Brass Pipe Bushing 1\" x 3\/4\" NPT | Marine Plumbing Reducer Fitting","description":"\u003ch2\u003eBrass Pipe Bushing 1\" x 3\/4\" NPT — Marine Plumbing Reducer Fitting\u003c\/h2\u003e\u003cp\u003eA compact, reliable brass reducer bushing for marine plumbing systems. This 1\" male NPT x 3\/4\" female NPT bushing steps down a 1\" threaded port to accept a 3\/4\" fitting, hose barb, or valve — one of the most common size transitions in marine raw water, bilge, and freshwater plumbing runs.\u003c\/p\u003e\u003cp\u003eMachined from solid brass, it resists corrosion in both freshwater and saltwater environments and forms a pressure-tight seal when used with marine-grade thread sealant. The NPT taper thread engages progressively as the fitting is tightened, eliminating the need for a separate gasket.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSize: 1\" male NPT x 3\/4\" female NPT (reducer bushing)\u003c\/li\u003e\n\u003cli\u003eMaterial: Solid brass — corrosion-resistant in freshwater and saltwater\u003c\/li\u003e\n\u003cli\u003eNPT taper thread — pressure-tight seal without a separate gasket\u003c\/li\u003e\n\u003cli\u003eSuitable for bilge, raw water, freshwater, and general marine plumbing\u003c\/li\u003e\n\u003cli\u003eUse with marine-grade PTFE tape or pipe thread sealant for a leak-free connection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBest Use Case\u003c\/h3\u003e\u003cp\u003eBest suited for stepping down a 1\" threaded port or fitting to a 3\/4\" connection in marine plumbing systems — common in raw water intake lines, bilge pump discharge plumbing, freshwater system connections, and engine cooling circuits. Always apply marine-grade PTFE tape or pipe thread sealant to NPT threads before assembly. Do not overtighten — NPT threads seal through taper engagement and excessive torque can crack brass fittings.\u003c\/p\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003eThe 1\" x 3\/4\" size is one of the most frequently requested brass bushing sizes — it covers a wide range of common plumbing transitions on production boats. When a customer needs this fitting, confirm whether they need a bushing (male-to-female, which this is) or a coupling (female-to-female) before ordering. Cross-sell with other sizes in the brass bushing range as needed: \u003ca href=\"\/products\/west-1219\"\u003e1-1\/4\" x 3\/4\" Brass Bushing\u003c\/a\u003e, \u003ca href=\"\/products\/west-1220\"\u003e1-1\/2\" x 1-1\/4\" Brass Bushing\u003c\/a\u003e, \u003ca href=\"\/products\/brass-pipe-bushing-2-5-x-2-npt-marine-plumbing\"\u003e2-1\/2\" x 2\" Brass Bushing\u003c\/a\u003e, and \u003ca href=\"\/products\/west-1223\"\u003e3\" x 2-1\/2\" Brass Bushing\u003c\/a\u003e. For elbow fittings in the same plumbing run, see the \u003ca href=\"\/products\/west-1228\"\u003eBrass 90° Elbow 1\" NPT\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eRelated Brass Plumbing Fittings\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/west-1219\"\u003eBrass Bushing 1-1\/4\" x 3\/4\" NPT\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/west-1220\"\u003eBrass Bushing 1-1\/2\" x 1-1\/4\" NPT\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/brass-pipe-bushing-2-5-x-2-npt-marine-plumbing\"\u003eBrass Bushing 2-1\/2\" x 2\" NPT\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/west-1223\"\u003eBrass Bushing 3\" x 2-1\/2\" NPT\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/west-1228\"\u003eBrass 90° Elbow 1\" NPT\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/west-1229\"\u003eBrass 90° Elbow 1-1\/2\" NPT\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WEST","offers":[{"title":"Default Title","offer_id":43564204884004,"sku":"PLU-BB1X3\/4","price":15.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/5e45b27a-e993-4328-b82a-d32533398357.png?v=1784483932","url":"https:\/\/marisolmarine.com\/products\/brass-pipe-bushing-1-x-3-4-npt-marine-plumbing","provider":"Marisol Marine Company","version":"1.0","type":"link"}