Sea-Dog Thru-Hull Drain Fitting, Polypropylene, White
Sea-Dog Thru-Hull Drain Fitting, Polypropylene, White — Product description
Need to drain water through the hull above the waterline? This Sea-Dog thru-hull fitting is a simple white polypropylene answer for sink, livewell, and deck discharge. It measures 2-3/16 inches OD with a 3-9/16 inch length, connects to a standard drain hose, and won't corrode. Rated for above-the-waterline use, sold as a single fitting.
When you need to run a drain line through the hull above the waterline, this Sea-Dog thru-hull fitting is a simple, no-fuss way to do it. It's molded from white polypropylene, so it won't corrode and it shrugs off UV and saltwater exposure. You'll find these handling sink drains, livewell overflows, shower and bilge discharge, and deck scuppers, anywhere water needs a clean path overboard.
The fitting runs 2-3/16 inches at the outside diameter with a 3-9/16 inch overall length, and the hose connection is sized to take a clamp tight. Drill your hole, bed it in a good marine sealant, and snug it down. That's about all there is to it.
One thing to keep straight. This one's rated for drainage above the water line only. Don't use it below the waterline where it'd sit under constant head pressure. For above-the-line discharge on most boats, though, it's a clean, cheap, reliable fix. Sold as a single fitting.
Key Features
- White polypropylene construction resists corrosion, UV, and saltwater
- Thru-hull mount rated for drainage above the water line
- 2-3/16 inch outside diameter, 3-9/16 inch overall length
- Hose connection sized for a standard drain hose and clamp
- Sold as a single fitting
Why Buy from NVN Marine
- Authorized Sea-Dog reseller, full manufacturer warranty
- NMEA member and ABYC certified, advice from real boat techs
- Same-day shipping before 3 PM ET on in-stock items
- NY headquarters and Fort Lauderdale flagship retail store
Technical specifications
| Title | Use With Hose For Drainage Above The Water Line; Thru-Hull Mount; 2-3/16 Inch Outside Diameter; 3-9/16 Inch Length; Polypropylene; White; Single |
|---|---|
| Brand | Sea-Dog |
| Manufacturer Part Number | 520770-1 |
| UPC | 035514520256 |
| Mounting | Thru-Hull Mount |
| Application | Use With Hose For Drainage Above The Water Line |
| Outside Diameter | 2-3/16 Inch |
| Length | 3-9/16 Inch |
| Material | Polypropylene |
| Color | White |
| Quantity | Single |
Frequently asked questions
Can I install this below the waterline?
No. This fitting is rated for drainage above the water line only. Don't put it below the waterline where it'd be under constant head pressure. Use a proper below-waterline thru-hull for that.
What's it made of, and will it corrode?
It's molded from white polypropylene. That means it won't corrode, and it holds up well to UV and saltwater, so it's a solid pick for exposed drain runs.
What are the dimensions?
The outside diameter is 2-3/16 inches and the overall length is 3-9/16 inches. Match your drain hose to the fitting's connection and secure it with a stainless clamp.
How many fittings come in the package?
It's sold as a single fitting.
