SKU: T2R00HS9U5 |  Mfg. Part: 66550-3  | UPC: 022697665508  | 
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Attwood Marine 66550-3 Attwood 1/4" Stainless Steel Thru-Hull Fitting

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$49.67  $67.05
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Product Overview

Attwood 1-1/4" Stainless Steel Thru-Hull Fitting

Enhance your boat's durability and appearance with our premium stainless steel thru-hull fitting. Designed to withstand the harsh marine environment, this fitting ensures you'll never have to compromise on quality.

Superior Stainless Steel Construction:

  • Crafted from high-grade Enhanced 316 Stainless Steel for maximum strength and corrosion resistance.
  • Polished to a mirror finish for aesthetics and further protected through passivation.
  • Robust construction with thick sidewalls to endure stress and hose flexing.

Easy Installation:

  • Includes a silicone gasket for a secure seal during installation.
  • Innovative channel design under the flange aids in applying sealant effortlessly.
  • Features wrench flats or end notches for easy tightening from inside the hull.
  • The barbed tail provides ample room for multiple clamps, enhancing connection security.

Product Specifications:

  • Hose Size: 1-1/4" inner diameter
  • Flange Diameter: 2-1/4"
  • Thread O.D.: 1-5/8"
  • Thread Length: 2-1/2"
  • Barb Length: 1-1/4"
  • Total Length: 4-1/4"
  • Install Hole Saw Size: 1-3/4"
  • Thread NPSM: 1-1/4"
  • Max Hull Thickness: 1-7/8"

*This stainless steel thru-hull connector is intended for use above the waterline only.

Technical Specifications

  • Made from Enhanced 316 Stainless Steel for longevity and durability.
  • Mirror polish finish coupled with protective passivation.
  • Designed for easy, one-person installation from inside the hull.
  • Contemporary design with robust barbed tail for secure hose connection.

Product Details

  • Manufacturer:
  • Model Number:
  • UPC:
  • Condition:
  • Weight:
  • Dimensions:
  • Updated:
  • Added:
  • Country of Origin:
  • Attwood Marine
  • 66550-3
  • 022697665508
  • New
  • 1.3 lbs
  • 0 X 0 X 0
  • Feb 19, 2026
  • Apr 17, 2024
  • THAILAND
Product Identifiers: Brand: Attwood Marine • Part #: 66550-3 • UPC: 022697665508 • Category: Mixed Lot

Attwood Marine 66550-3 Attwood 1/4" Stainless Steel Thru-Hull Fitting

Reviews for Attwood Marine 66550-3

$49.67