SKU: GU3R5FZM6Y |  Mfg. Part: 66548-3  | UPC: 022697665485  | 
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Attwood Marine 66548-3 Attwood 1" Stainless Steel Thru-Hull Straight Barbed Fitting

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Condition: New

$33.89  $45.75
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Product Overview

1" Stainless Steel Thru-Hull Straight Barbed Fitting

Enhance your boating experience with Attwood's stainless steel thru-hull fittings. Designed for durability and a lifetime of corrosion resistance, these premium fittings outperform traditional plastic components.

Durable Stainless Steel Construction:

  • Made from certified Enhanced 316 Stainless Steel for superior strength and corrosion resistance.
  • Features a polished mirror finish on all visible surfaces, further protected by a passivation process.
  • Thick sidewalls are engineered to endure sustained stress and flexing.

Easy Installation Features:

  • Includes a silicone gasket for a reliable seal.
  • Designed with a channel under the flange to hold sealant, ensuring a straightforward installation.
  • Wrench flats or end notches facilitate tightening from inside the hull by one installer.
  • Barbed tail design allows for secure multi-clamp installations.

Thru-Hull Specifications:

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

*For above water line installation only.

Technical Specifications

  • Constructed from Enhanced 316 Stainless Steel
  • Polished mirror finish for aesthetic appeal
  • Sustainable and corrosion-resistant
  • Quick, secure installation options
  • Reliable seal with included silicone gasket

Product Details

  • Manufacturer:
  • Model Number:
  • ASIN:
  • UPC:
  • Condition:
  • Weight:
  • Dimensions:
  • Updated:
  • Added:
  • Country of Origin:
  • Attwood Marine
  • 66548-3
  • B001HC0R6W
  • 022697665485
  • New
  • 0.8 lbs
  • 7 X 3 X 4
  • Apr 20, 2026
  • Apr 06, 2023
  • THAILAND
Product Identifiers: Brand: Attwood Marine • Part #: 66548-3 • UPC: 022697665485 • ASIN: B001HC0R6W

Attwood Marine 66548-3 Attwood 1" Stainless Steel Thru-Hull Straight Barbed Fitting

Reviews for Attwood Marine 66548-3

$33.89