Attwood Marine Stainless Steel Thru-Hull Fitting - 5/8 inch Inner Diameter, Straight Barbed, Model 66546-3

Stainless Steel Thru-Hull Standard Straight Barbed - 5/8" 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) 5/8" 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) 1-1/16"

*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, model 66546-3, designed for durability and reliable performance. Crafted from certified Enhanced 316 stainless steel, this fitting offers exceptional strength and corrosion resistance, ensuring it withstands harsh marine environments for the lifetime of your vessel. The polished mirror finish on all visible surfaces adds a sleek, professional appearance while the passivation process enhances its longevity. Featuring thick steel sidewalls, this fitting can endure continual stress and hose flexing, making it an ideal choice for demanding marine applications. Its standard straight barb and full-length thread facilitate easy installation, especially on thicker hulls, with the added convenience of a silicone gasket for a secure seal. A channel beneath the flange holds sealant, simplifying the sealing process and reducing installation time. Equipped with wrench flats or end notches, the fitting allows for straightforward tightening from inside the hull, even in tight spaces. The barb end accommodates multiple clamps, providing a secure connection to your hoses. Designed for installation above the water line only, this fitting ensures a reliable, long-lasting connection for your boat’s plumbing system. The model features a 1-7/8 inch flange diameter, 1 inch thread outside diameter, and a 2-inch thread length, suitable for hull thicknesses up to 1-1/16 inches. The 5/8 inch inner diameter hose size makes it compatible with standard marine hoses, while the 1-1/4 inch barb length offers ample room for secure clamping. Whether replacing an old fitting or installing a new system, the Attwood Marine Stainless Steel Thru-Hull provides the durability, ease of installation, and corrosion resistance needed for a trouble-free boating experience. This high-quality component is essential for anyone seeking a dependable, long-term solution for hull penetrations, combining performance with a polished appearance to complement any vessel’s aesthetic.

Features:

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

• Polished mirror finish with passivation for enhanced durability

• Thick steel sidewalls withstand continual stress and hose flexing

• Includes a silicone gasket for a secure, trouble-free installation

• Channel under flange holds sealant for an easier sealing process

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

• Barbed tail accommodates multiple clamps for secure hose connection

• Full-length thread designed for thick hulls and straightforward tightening

• Suitable for installation above water line only