Attwood Stainless Steel Thru-Hull Standard Straight Barbed - 1-1/2" Inner Diameter delivers rugged reliability for your boat with a precision-fit thru-hull fitting crafted from corrosion-resistant stainless steel.
Polished to a mirror finish and passivated for extra protection, these fittings stand up to the toughest marine conditions. Cast from certified Enhanced 316 stainless steel, they offer strength, lifetime corrosion resistance, and a clean, professional look.
Designed for speed and ease of installation on your hull:
- Thick steel sidewalls withstand continual stress and hose flexing
- New silicone gasket on each thru-hull for easier, leak-free sealing
- A channel under the flange holds a bead of sealant for a trouble-free seal
- Wrench flats or an end notch provide a gripping surface, so one installer can tighten all connections from inside the hull
- Barbed tail ends provide room to fit multiple clamps
- Standard thread model with full-length thread for thick hulls and easy tightening
Specifications
- Hose size: 1-1/2" inner diameter
- Flange Diameter: 3"
- Thread O.D.: 1-7/8"
- Thread Length: 2-1/2"
- Barb Length: 1-1/4"
- Total Length: 4-1/8"
- Install Hole Saw Size: 2"
- Thread NPSM: 1-1/2"
- Max Hull Thickness: 1-7/8"
- Note: Installations above the water line only
- Manufacturer: Attwood Marine
- Manufacturer Part No: 66551-3
- UPC: 022697665515
Choose Attwood for a thru-hull that combines performance, durability, and a worry-free seal—backed by a trusted marine manufacturer and designed to last the life of your boat.
