Attwood
Stainless Steel Straight Thru-Hulls Barbed Short Length
Regular price
$ 31.49 USD
Regular price
Sale price
$ 31.49 USD
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Lifetime Warranty
See Size Chart Below
Polish your image with these beautiful, durable stainless steel fittings. Each Thru-Hull and Scupper Valve is available with a new silicone gasket and are backed by Attwood's trusted Lifetime Warranty! Why specify plastic parts when these fittings will last the life of the boat?
Rugged Stainless Construction
- Cast from certified enhanced #316 Stainless Steel allow for strength and lifetime corrosion-resistance.
- We polish all visible areas to a mirror finish, then each part through a passivation for additional protection
- Thick steel sidewalls withstand continual stress and hose flexing
Solid Silicone Gasket
- Gasket is dimensionally stable--will not deteriorate or shrink over time
- Excellent resistance to UV & weather-aging
- Watertight, fool-proof, one-piece seal
- Eliminates the need to form and apply sealant or caulk
- No moreChemicals, solvent-soaked rags,or cleanup
- More than pays for itself in saved labor and cleanup time
- Guaranteed good looks because the perfect fit and concealment is built in the gasket
Faster, Simpler Installation
- A channel under the flange holds a bead of sealant, making it easier to apply a trouble-free seal
- All models have wrench flats or an end notch to hold as a gripping surface. One installer can tighten all connections from inside the hull
- Barbed tail ends provide plenty of room to hold multiple clamps
Caution: Thru-Hull connectors are designed for installation above the water line only.
| A Hose Size | B Flange Dia. | C Thread O.D. | D Thread Length | E Barb Length | F Total Length | Install. Hole Saw Size | Thread NPSM | Max Hull Thick. | Bulk Without Gasket | Bulk With Gasket | Aftermarket Packaging* |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Short Length | |||||||||||
| 5/8" I.D. | 1-7/8" | 1" | 1" | 1" | 2-1/4" | 1-1/8" | 3/4" | 5/8" | 66540-1 | 66540G1 | 66540-3 |
| 3/4" I.D. | 1-7/8" | 1" | 1" | 1" | 2-1/2" | 1-1/8" | 3/4" | 5/8" | 66541-1 | 66541G1 | 66541-3 |
| 1" I.D. | 2-1/4" | 1-3/8" | 1-1/8" | 1" | 2-1/2" | 1-1/2" | 1" | 5/8" | 66542-1 | 66542G1 | 66542-3 |
| 1-1/8" I.D. | 2-1/4" | 1-3/8" | 1-1/4" | 1" | 2-1/2" | 1-1/2" | 1" | 5/8" | 66543-1 | 66543G1 | 66543-3 |
| 1-1/4" I.D. | 2-3/4" | 1-5/8" | 1-1/4" | 1" | 2-5/8" | 1-3/4" | 1-1/4" | 5/8" | 66544-1 | 66544G1 | 66544-3 |
| 1-1/2" I.D. | 3" | 1-7/8" | 1-1/4" | 1-1/2" | 3-1/8" | 2" | 1-1/2" | 5/8" | 66545-1 | 66545G1 | 66545-3 |
