Flow-Rite is the leading U.S.A. manufacturer of 1-1/2″ Stainless Steel 90° Thru-Hull Fittings, combining advanced composite polymer with premium stainless steel construction. Engineered for strength and reliability, this fitting is built to perform in demanding marine environments while maintaining long-term durability and a clean, polished look.
- Designed with precision to ensure a secure, leak-resistant fit.
- Constructed using high-quality materials for extended performance in harsh conditions.
- Easy-to-install design allows for quick, efficient hose connections.
- Polished 316L stainless steel flanges paired with glass-filled composite polymer bodies.
- Insert-molded construction permanently bonds stainless steel and polymer components.
- ABYC & NMMA compliant for above waterline applications.
- Proudly made in the USA.







