GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 2"

The GROCO Stainless Steel Hose Barb Thru-Hull Fitting in 2-inch size is a marine-grade through-hull connector built for demanding saltwater and freshwater applications. Manufactured from #316 stainless steel, this fitting combines corrosion resistance with structural integrity, making it the standard choice for connecting seawater intake lines, bilge systems, and deck wash systems on vessels ranging from fishing boats to offshore cruisers. The hose barb design accepts standard marine hoses while the NPS threaded connection secures firmly through the hull, eliminating the leaks that plague inferior fittings in high-vibration environments.

The #316 stainless steel construction outperforms standard 304 variants in salt-air exposure, resisting pitting and crevice corrosion that occurs in marine environments where chloride concentrations are high. The UL Listed 647B certification confirms compliance with standard safety requirements for marine through-hull fittings, providing assurance that the fitting meets established performance and durability benchmarks. NPS (National Pipe Straight) threading ensures compatibility with standard marine plumbing configurations, and the barb stem accepts 2-inch hoses without requiring additional adapters.

This fitting serves both recreational fishermen maintaining weekend center consoles and commercial operators running multi-day offshore operations. Any vessel owner who has experienced weeping connections during rough seas or corrosion failure in a through-hull application understands the importance of investing in proven marine hardware. The GROCO HTH-2000-S is the specification-grade fitting that naval architects and professional boat builders specify for systems where reliability cannot be compromised.

Whether replacing a failed fitting or outfitting new plumbing runs, the 2-inch GROCO hose barb thru-hull fitting represents the established standard in marine through-hull connectors. For buyers comparing marine plumbing options, #316 stainless steel and UL certification are the non-negotiable specifications that separate equipment that functions under real saltwater conditions from hardware that corrodes or leaks.