T-H Marine’s 1-1/8 inch straight thru-hull fittings deliver OEM-grade performance for marine plumbing systems, including livewell drains, overflow tubes, and general water-routing applications.
Constructed from virgin materials of high quality and fully UV stabilized, these fittings maintain durability, consistent sizing, and a clean appearance under long-term sun exposure and demanding marine conditions.
The hose barbs, precision-molded, match specifications from major hose manufacturers, ensuring secure, leak-resistant connections on 1-1/8 inch hose.
The configuration of the straight body supports efficient plumbing layouts in bilges, transoms, and tight rigging spaces.
This product family includes multiple variants—black, white, chrome plated, and extended-length options—each engineered with the same professional standards trusted by OEM boat builders across the United States.
Whether upgrading aftermarket rigging, replacing an existing fitting, or outfitting a custom build, these thru-hull fittings provide reliable, long-term performance for freshwater and saltwater boats.
