Groco Your #1 Marine Thru Hulls and Fitting

BUILT TO PERFORM BELOW THE WATERLINE.

The new GROCO HSSLTH Series bronze thru hull fittings are engineered for strength, reliability, and long-term performance in demanding marine environments.

Available in Multiple Sizes

From 1" to 2", the HSSLTH Series provides a dependable fit for a wide range of marine plumbing applications.

TRUSTED MARINE PERFORMANCE FOR OVER 100 YEARS

For more than a century, GROCO has been the trusted name in marine plumbing and fluid management products. The HSSLTH Series continues that tradition with rugged construction and precision engineering boat builders and service professionals depend on.

See all Groco corrosion-resistant bronze products at CLR Marine