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

Stainless Steel Thru-Hulls are essential components for marine applications, providing reliable and long-lasting performance for your boat. Crafted from premium materials, these thru-hulls ensure secure fittings and hassle-free installations, enhancing both the aesthetics and functionality of your vessel.

Durable Stainless Steel Construction

• Cast from certified Enhanced 316 Stainless Steel alloy for exceptional strength and lifetime corrosion resistance
• All visible areas are polished to a mirror finish and passivated for additional protection
• Thick steel sidewalls withstand continual stress and hose flexing, ensuring durability

Easy and Efficient Installation

• Comes with a new silicone gasket for each thru-hull, ensuring a reliable seal
• A channel under the flange holds a bead of sealant, simplifying the application of a trouble-free seal
• Equipped with wrench flats or an end notch to provide a gripping surface, allowing one installer to tighten all connections from inside the hull
• Barbed tail ends offer ample space to secure multiple clamps, providing flexibility in hose management

Product Features

• Standard Thread Model features a full-length thread for thicker hulls and easy tightening
• Designed for installation above the waterline, ensuring optimal performance and longevity

Specifications

Feature	Details
Hose Size	1-1/8" Inner Diameter
Flange Diameter	2-1/4"
Thread O.D. (Outside Diameter)	1-3/8"
Thread Length	2-3/8"
Barb Length	1-1/4"
Total Length	3-7/8"
Install Hole Saw Size	1-1/4"
Thread NPSM	1"
Max Hull Thickness	1-3/4"

Additional Specifications

Feature	Details
Material	Stainless Steel
Box Dimensions	2"H x 4"W x 7"L
Weight	0.85 lbs
UPC	022697665492

*Stainless Steel Thru-Hull Connectors are designed for installation above the waterline only.

Quick Guide (PDF)

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.