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Forespar 907017 SW-4 Marelon 1" 90° Sink Waste Fitting

Manufacturer

Forespar

<h3>About Forespar Products Corporation</h3><p><strong>Forespar Products Corporation</strong> has been a cornerstone of the marine industry since its founding in 1966. The company's origin story is as practical as the products it makes: <a href="/7351-forespar">Forespar</a> was started by lifelong boater Robert Foresman simply because he wanted a telescoping whisker pole — and couldn't find one good enough. That hands-on, solve-a-real-problem philosophy has guided every product decision in the decades since, growing Forespar from a single-product idea into a large and diversified supplier of sailing and boating products serving the world market.</p><p>Headquartered in Rancho Santa Margarita, California, Forespar operates a state-of-the-art manufacturing facility that handles the entire product lifecycle in-house. The team uses CAD/CAM design, a full machine shop, plastic injection molding, and carbon composite processing — capabilities that allow Forespar to maintain the tight tolerances and consistent quality that demanding sailors and powerboaters expect. This vertical integration is a key reason the brand has earned such a loyal following across the globe.</p><h3>Marelon&reg;: The Forespar Innovation That Changed Marine Plumbing</h3><p>One of Forespar's most celebrated contributions to boating is <strong>Marelon&reg;</strong>, a proprietary polymer composite formulation engineered specifically for marine plumbing applications. Marelon fittings — including seacocks, thru-hulls, and vented loops — deliver exceptional resistance to corrosion and electrolysis, two of the most persistent threats to below-waterline hardware. Because Marelon components weigh roughly half as much as traditional bronze equivalents, they help reduce overall boat weight without compromising structural integrity. The precision-molded plumbing systems built with Marelon are UL approved and meet A.B.Y.C. standards, giving boaters confidence that their below-deck plumbing is as safe as it is durable.</p><p>Forespar vented loops and thru-hull fittings are trusted by both sailors and powerboat owners who need reliable, maintenance-friendly solutions that hold up in the harshest saltwater environments. The corrosion-free nature of Marelon also means fewer inspections, less maintenance, and longer service life compared to metal alternatives.</p><h3>Sailing Performance Gear: Poles, Vangs, Furling &amp; More</h3><p>Beyond plumbing, Forespar is equally renowned for its performance sailing hardware. The brand's lineup of <strong>spinnaker poles and whisker poles</strong> — available in aluminum, carbon fiber, and composite materials — is designed to help sailors extract maximum downwind performance. The locking telescoping designs allow for quick adjustments on the water, and the carbon fiber options in particular combine a featherlight feel with impressive structural strength. For racers and cruisers alike, Forespar poles represent a genuine upgrade in sail handling capability.</p><p>The <strong>Leisure Furl</strong> in-boom mainsail furling system is another flagship product line bearing the Forespar name — a sophisticated solution for sailors who want easy, reliable sail stowage without sacrificing performance. Rounding out the sailing hardware catalog are boom vangs, sail handling hardware, davit systems, and safety equipment, making Forespar a one-stop source for outfitting a sailboat from deck to transom.</p><h3>Powerboat &amp; Cruising Accessories</h3><p>Forespar's reach extends well beyond racing sailboats. The brand's <strong>davit systems</strong> and the innovative <strong>Nova Lift</strong> make deploying and retrieving dinghies, tenders, and outboard motors significantly easier for cruising families and liveaboards. Forespar's marine lighting products offer dependable illumination for navigation and on-deck use. The Flopper Stopper — a uniquely Forespar solution — helps reduce uncomfortable rolling at anchor, a quality-of-life upgrade that any offshore cruiser will appreciate.</p><p>Whether you're racing offshore, cruising coastal waters, or maintaining a powerboat at the dock, Forespar has built products specifically for your challenges. The brand's commitment to innovation, quality manufacturing, and real-world boating experience has made it one of the most trusted names on the water for more than five decades.</p>

Part Number

907017
06/09/2036 9:47 AM
Sale Price

$36.69

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Product Details

The Forespar 907017 SW-4 is a marine-grade sink waste fitting designed for through-hull drainage applications on boats. This 1-inch, 90-degree elbow fitting is constructed from Marelon, Forespar's proprietary glass-reinforced composite material that offers superior strength and corrosion resistance compared to traditional bronze fittings.

Key Features:

  • Bright chrome-plated finish over non-corrosive Marelon plastic construction
  • 1-inch diameter with 90-degree angle for efficient drainage routing
  • Will not corrode, pit, or deteriorate in harsh marine environments
  • Lighter weight than traditional metal fittings
  • Does not conduct electricity, eliminating galvanic corrosion concerns
  • Smooth interior surface prevents buildup and ensures consistent flow

Marelon fittings are trusted by boat builders and marine professionals worldwide for their durability and performance. The SW-4 sink waste fitting provides a reliable, long-lasting solution for galley and head sink drainage systems while maintaining an attractive chrome appearance.

Products specifications

Diameter

2"Fits 1" Hose

Material

Marelon

Shipped really fast, haven't even had a chance to use the paint yet.

It was a pain in the butt trying to complete payment ! I have never had this much trouble with any other companies!!!

Shopping went well. Good price.

Very Good

So far so good

Parts felt like good quality and fit perfectly.

Autoplicity was easy to order from price was great. But not a fan of Fedex never have been took two trips to get what i ordered one day and then the next.

Good

Simple to order!

Best price fast shipping. will deffinitly order again

Quick and easy.

Bought some wire looms for my Chevy from them. Great price, service, and shipping speed!

Good so far

Great

proof is in the pudding

Amazing prices

Easy site to use and order from. Autoplicity has friendly customer service and also they had the CHEAPEST price on the exhaust tip that I ordered for my truck. I am a very happy customer!!!

Quick and easy.. Thanks Google

So far, so good.

Great Seller, This is my second order with Autoplicity. Both times, item was shipped with in 1 day. I received both items within 3 business days. I got a great price. About 30% lower price than anywhere else. I will be shopping here again.

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