Attwood 500 GPH Automatic Plumbing Kit

This all-in-one bundle provides a complete drainage solution for your boat, featuring the Attwood Sahara S500 automatic pump. Designed for reliability in tight spaces, this kit includes everything needed to route water from the bilge to the exterior of the hull.

The Sahara S500 pump features an integrated, mercury-free float switch, eliminating the need for a secondary switch and simplifying your wiring. Paired with 6 feet of flexible, kink-resistant corrugated hose and marine-grade stainless steel clamps, this setup ensures a leak-proof connection that resists corrosion in both fresh and saltwater environments. The included 3/4-inch thru-hull fitting provides a clean, professional finish for your exit point.

What’s in the Box:

• Attwood Sahara S500 Automatic Bilge Pump

• 10' Long 3/4" ID Corrugated Bilge Hose

• 2 Stainless Steel Hose Clamps

• 3/4" Plastic Thru-Hull Fitting

Why This Bundle Works

• Set It and Forget It: The Sahara S500 features a built-in mercury-free float switch. As soon as water rises, the pump kicks in; once it's dry, it shuts off.

• Optimized Flow: We’ve matched the 3/4" interior diameter hose and fitting specifically to the S500’s outlet to prevent backpressure and maximize pumping efficiency.

• Everything is Marine-Grade: From the non-corrosive pump housing to the stainless steel worm-gear clamps, every piece is designed to survive the harsh realities of the bilge environment.

• Simple DIY Installation: The compact pump footprint fits into tight spaces, and the included hose is long enough for most small-to-midsize skiffs, jon boats, or runabouts.

Pro Tip: When installing, ensure your thru-hull fitting is placed well above the waterline to prevent siphoning!