Attwood Marine Stainless Steel Thru-Hull Fitting, 3/4" Inner Diameter, Straight Barbed Connection

Stainless Steel Thru-Hull Standard Straight Barbed - 3/4" 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) 3/4" inner diameter


• Flange Diameter: (inch) 1-7/8"


• Thread O.D. (outside diameter): (inch) 1"


• Thread Length: (inch) 2"


• Barb Length: (inch) 1-1/4"


• Total Length: (inch) 3-3/4"


• Install Hole Saw Size: (inch) 1-1/8"


• Thread NPSM: (inch) 3/4"


• Max Hull Thickness: (inch) 1-5/8"

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

Upgrade your boat’s plumbing with the Attwood Marine Stainless Steel Thru-Hull Fitting, Part Number 66547-3. Crafted from certified Enhanced 316 stainless steel, this durable fitting offers superior strength and corrosion resistance, ensuring long-lasting performance in harsh marine environments. The polished mirror finish on all visible surfaces not only enhances the aesthetic appeal but also provides an additional layer of passivation for protection against corrosion. Designed with thick steel sidewalls, this fitting withstands continual stress and hose flexing, making it ideal for demanding marine applications.
Installation is straightforward thanks to features like a silicone gasket for a reliable seal and a channel beneath the flange that holds a bead of sealant for a trouble-free installation. The inclusion of wrench flats or an end notch allows a single installer to tighten connections from inside the hull easily. The barbed tail provides ample room for multiple clamps, ensuring a secure fit for the hose. This straight-through model features a full-length thread suitable for thicker hulls, simplifying the tightening process and providing a robust connection. Designed specifically for above-water-line installation, this fitting ensures a secure and corrosion-resistant connection for boat plumbing systems.
Measuring approximately 3-3/4 inches in total length with a 1-7/8-inch flange diameter, this fitting fits hoses with a 3/4-inch inner diameter. The threaded portion has an outside diameter of 1 inch and a length of 2 inches, while the barb extends 1-1/4 inches for flexible hose attachment. It requires a 1-1/8 inch install hole saw for proper installation. The maximum hull thickness compatible with this fitting is 1-5/8 inches, making it suitable for most marine hulls. Designed for durability and ease of installation, the Attwood Stainless Steel Thru-Hull fitting is an essential component for reliable boat plumbing systems that withstand the test of time and harsh marine conditions.

Features:

• Constructed from certified Enhanced 316 stainless steel for corrosion resistance and strength

• Mirror polished finish with passivation for additional protection

• Thick steel sidewalls designed to withstand continual stress and hose flexing

• Includes silicone gasket for easier sealing during installation

• Channel under flange holds sealant for trouble-free installation

• Wrench flats or end notch for easy tightening from inside the hull

• Barbed tail ends accommodate multiple clamps for secure hose attachment

• Full-length thread suitable for thick hulls, simplifying installation

• Designed for installation above the waterline

• Maximum hull thickness compatibility of 1-5/8 inches