SKU: 51173704201

Attwood Stainless Steel Thru-Hull Standard Straight Barbed - 1-1/8" Inner Diameter [66549-3]

Sale price$33.75 Regular price$37.50
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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7

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Description

Attwood Stainless Steel Thru-Hull Standard Straight Barbed - 1-1/8" Inner Diameter [66549-3]Stainless Steel Thru Hull Standard Straight Barbed 1 1 8" Inner Diameter Polish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will last the life of the boat? Rugged Stainless Construction: Cast from certified Enhanced 316 Stainless Steel alloy for strength and lifetime corrosion resistance All visible areas are polished to a mirror finish, then passivate each part for additional

Stainless Steel Thru-Hull Standard Straight Barbed - 1-1/8" Inner Diameter

Polish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will last the life of the boat?

Rugged Stainless Construction:

  • Cast from certified Enhanced 316 Stainless Steel alloy for strength and lifetime corrosion-resistance
  • All visible areas are polished to a mirror finish, then passivate each part for additional protection
  • Thick steel sidewalls withstand continual stress and hose flexing

Faster, Simpler Installation:

  • Each Thru-Hull is available with a new silicone gasket
  • 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
  • The barbed tail ends provide plenty of room to hold multiple clamps

Stainless Steel Straight Thru-Hulls, Barbed

  • Standard Thread model has a full-length thread for thick hulls and easy tightening

Specifications:

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

*Stainless Steel Thru-Hull Connectors are designed for installation above the water line only

Specifications:

  • Hose Size: 1-1/8"
  • Material: Stainless Steel
  • Box Dimensions: 2"H x 4"W x 7"L WT: 0.85 lbs
  • UPC: 022697665492

Quick Guide (pdf)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 51173704201

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Janeth B
Louisville, US
★★★★★ 5
Great
I recently used this motor oil for my car, and I’m very satisfied with the results. The engine runs smoother and quieter, and I noticed improved performance almost immediately. It provides excellent protection, especially during longer drives, and helps maintain steady engine temperature.
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Reviewed in the United States on September 8, 2025
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Gustavo Gonzalez
Grantham, US
★★★★★ 5
As expected it
Great brand, engine smoothness, value for money
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Reviewed in the United States on January 24, 2026
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Garred Quedens
Lowell, US
★★★★★ 5
Nice product
Size: 5 Liter
Great oil my car burns a lot of oil even full synthetics. This oil still burns but the rate has noticeably reduced compared to the last stuff I used. A bit pricey but worth it
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Jimmytall
Birmingham, US
★★★★★ 5
Experience Unmatched Performance with LIQUI MOLY MoS2 Antifriction SAE 10W-40!
Size: 5 Liter, Size: 5 Liter
recently used the LIQUI MOLY MoS2 Antifriction SAE 10W-40 part-synthetic engine oil, and I am thoroughly impressed with its performance. This product performed exactly as advertised. The engine oil provided excellent cold-start behavior, making starting the engine in low temperatures much smoother. Additionally, it maintained stable viscosity and remained resistant to aging, which is crucial for long-term engine health. One of the standout features is that it has no harmful effects on catalytic converters, which is a significant advantage for maintaining overall vehicle performance. Overall, the LIQUI MOLY MoS2 Antifriction engine oil exceeded my expectations and delivered on all its promises. I highly recommend it for anyone looking for reliable and high-quality engine oil.
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Reviewed in the United States on July 29, 2024
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Volodymyr Bilov
San Leandro, US
★★★★★ 5
super delivery
Size: 5 Liter
excellent quality, super delivery
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Reviewed in the United States on February 15, 2026

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