{"product_id":"whitecap-industries-6579x-duplex-stainless-steel-90-degree-thru-hull-fitting-with-barb-1-1-8-inch","title":"Whitecap Industries Duraplex 1-1\/8 Inch 90-Degree Duplex Stainless Steel Thru-Hull Fitting - 6579X","description":"\u003cp\u003eThe Whitecap Industries Duraplex 6579X is a 90-degree thru-hull fitting built from duplex stainless steel, designed to route a hose through a boat hull at a right angle while resisting the corrosion that marine environments cause over time. Duplex stainless steel combines the strength of standard stainless with added resistance to pitting and crevice corrosion, making it a durable choice for below-waterline hull penetrations that see constant water contact.\u003c\/p\u003e\u003cp\u003eThis fitting is sized for 1-1\/8 inch hose and features a 90-degree barb outlet, letting hose runs turn through the hull without a separate elbow fitting. The flange seats against the hull exterior while the threaded body passes through the cut-out, and the barb end accepts hose secured with a hose clamp. It is intended for use in below-waterline plumbing runs such as bilge pump discharge, raw water intake, livewell, or washdown lines where a right-angle hull penetration is needed.\u003c\/p\u003e\u003cp\u003eInstallation requires a hull cut-out matching the fitting's specified cut-out diameter and a hull thickness within the fitting's rated maximum. Whitecap Industries manufactures the 6579X to the dimensions listed below for a consistent fit against the flange and thread length.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Whitecap Industries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 6579X\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Thru-Hull Fitting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Duplex Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAngle:\u003c\/strong\u003e 90 Degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHose Size:\u003c\/strong\u003e 1-1\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange Outer Diameter:\u003c\/strong\u003e 1-7\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length:\u003c\/strong\u003e 1-5\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarb Length:\u003c\/strong\u003e 1-1\/2 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 3-1\/2 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut Out Diameter:\u003c\/strong\u003e 1-5\/16 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Hull Thickness:\u003c\/strong\u003e 1-1\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1 pound\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis is a universal thru-hull fitting sized by hose diameter and hull thickness rather than by boat make or model; confirm your hull cut-out and hull thickness match the dimensions above before ordering.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat size hose does the Whitecap 6579X thru-hull fit?\u003c\/strong\u003e The Whitecap Industries 6579X is sized for 1-1\/8 inch hose, with a barb length of 1-1\/2 inch to secure the hose with a clamp.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat angle is this thru-hull fitting?\u003c\/strong\u003e It is a 90-degree fitting, so the barb outlet turns at a right angle from the hull flange rather than running straight through, which is useful when the hose needs to change direction close to the hull.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 6579X made from?\u003c\/strong\u003e Duplex stainless steel, a grade chosen for its resistance to pitting and crevice corrosion in continuous saltwater and freshwater contact below the waterline.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat hull cut-out size is required to install the 6579X?\u003c\/strong\u003e The 6579X requires a cut-out diameter of 1-5\/16 inch to pass the fitting body through the hull.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the maximum hull thickness this fitting supports?\u003c\/strong\u003e The Whitecap 6579X is rated for a maximum hull thickness of 1-1\/4 inch.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long is the 6579X overall?\u003c\/strong\u003e Overall length is 3-1\/2 inch, with a thread length of 1-5\/8 inch and a flange outer diameter of 1-7\/8 inch.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 6579X weigh?\u003c\/strong\u003e This thru-hull fitting weighs 1 pound.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 6579X thru-hull fitting universal or boat-specific?\u003c\/strong\u003e It is a universal fitting sized by hose diameter, cut-out size, and hull thickness rather than by a specific boat make or model, so any hull meeting those dimensions can use the Whitecap 6579X.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between duplex and standard 316 stainless steel thru-hulls?\u003c\/strong\u003e Duplex stainless steel, used in the Whitecap 6579X, offers higher resistance to pitting and crevice corrosion than standard austenitic stainless grades, which matters for fittings that stay submerged continuously.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat applications is the 6579X thru-hull fitting used for?\u003c\/strong\u003e A 90-degree thru-hull like the Whitecap 6579X is used for below-waterline hose runs such as bilge pump discharge, raw water intake, livewell, or washdown lines where the hose needs to turn at a right angle through the hull.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 6579X come as a single fitting?\u003c\/strong\u003e Yes, the Whitecap 6579X thru-hull fitting is sold as an individual unit.\u003c\/p\u003e","brand":"Whitecap Industries","offers":[{"title":"Default Title","offer_id":49025295778011,"sku":"W-C-6579X","price":84.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/6579X_d3539f74-e6da-428c-8088-5824ff35ed8d.jpg?v=1785001787","url":"https:\/\/www.goodvibesmarina.com\/products\/whitecap-industries-6579x-duplex-stainless-steel-90-degree-thru-hull-fitting-with-barb-1-1-8-inch","provider":"Good Vibes Marina","version":"1.0","type":"link"}