GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 3/4"

The GROCO Stainless Steel Hose Barb Thru-Hull Fitting in 3/4" (Model HTH-750-S) is a marine-grade through-hull connector engineered for reliable saltwater and freshwater applications. Built from #316 stainless steel, this fitting provides superior corrosion resistance in harsh marine environments where standard fasteners fail. The hose barb design allows secure connection to flexible tubing without additional clamps, making it ideal for bilge systems, raw water intake lines, and drainage applications on recreational boats, commercial vessels, and offshore installations.

The NPS (National Pipe Straight) thread with integrated hose connection creates a single-component solution that simplifies installation and reduces leak points. The 3/4" bore accommodates standard marine hose diameters, and the UL Listed 647B certification confirms compliance with marine safety standards for through-hull fittings. #316 stainless steel resists pitting and crevice corrosion far better than 304 grade, making it the preferred material for subsurface and splash-zone installations where long service life is critical.

This fitting serves weekend boaters maintaining small craft water systems as well as serious offshore operators managing complex bilge, cooling, and intake networks. Whether you're replacing a corroded through-hull on a fishing vessel or building out new plumbing on a larger boat, the GROCO HTH-750-S delivers the dependability and material integrity required for saltwater duty. The stainless construction eliminates the electrolysis and rust concerns that plague steel alternatives, reducing maintenance and extending system life across multiple seasons of use.