Attwood Marine Stainless Steel Thru-Hull Fitting, 1-Inch Inner Diameter, Standard Straight Barbed | Durable Marine Hardware

Stainless Steel Thru-Hull Standard Straight Barbed - 1" 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" inner diameter
• Flange Diameter: (inch) 2-1/4"
• Thread O.D. (outside diameter): (inch) 1-3/8"
• Thread Length: (inch) 2-1/4"
• Barb Length: (inch) 1-1/4"
• Total Length: (inch) 3-7/8"
• Install Hole Saw Size: (inch) 1-1/2"
• 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

Enhance your boat's reliability and appearance with the Attwood Marine Stainless Steel Thru-Hull Fitting, part number 66548-3, designed for seamless installation and long-lasting performance. Crafted from certified Enhanced 316 stainless steel, this fitting offers superior strength and corrosion resistance, ensuring it withstands harsh marine environments for years to come. The mirror-polished finish not only provides a sleek, professional look but also adds an extra layer of protection through passivation, making it an ideal choice for demanding boating applications. Its thick steel sidewalls are engineered to endure continuous stress and hose flexing, providing peace of mind during extended voyages.

This model features a user-friendly design that simplifies installation. It comes with a silicone gasket for a tight seal and includes a channel underneath the flange to hold sealant, reducing the risk of leaks. The wrench flats or end notches allow easy gripping and tightening from inside the hull, enabling a single installer to complete the task efficiently. The barbed tail ends are designed with ample room for multiple clamps, ensuring a secure connection to your hoses. The standard thread model boasts a full-length thread suited for thicker hulls, making it versatile for various vessel configurations.

Ideal for above-waterline installations, the Attwood Stainless Steel Thru-Hull is perfect for marine professionals and DIY enthusiasts seeking durable, corrosion-resistant fittings that combine ease of installation with premium quality. The fitting's specifications support a 1-inch inner diameter hose, with a flange diameter of 2-1/4 inches and a total length of just under 4 inches, fitting comfortably into typical marine hulls. Designed to accommodate hull thicknesses up to 1-3/4 inches, this fitting ensures a secure, reliable connection every time, helping keep your boat watertight and operating smoothly in all conditions.

Features:

• Polished stainless steel construction for durability and corrosion resistance

• Full-length thread for easy tightening into thick hulls

• Includes silicone gasket for a secure seal

• Channel under flange designed for sealant application

• Wrench flats or end notches for easy installation from inside the hull

• Barbed tail ends with ample room for multiple clamps

• Designed for above-waterline installation only