SKU: CW74302
UPC: 742985146488
MPN: TH-1250-WS
The GROCO 1-1/4" NPS NPT Combo Stainless Steel Thru-Hull Fitting with Nut is a marine-grade hull penetration component designed for anglers, cruisers, and serious boaters who demand reliability in both saltwater and freshwater environments. Thru-hull fittings are critical components for safe water intake, bilge, and drainage systems on vessels.
Constructed from 316L stainless steel, this fitting is engineered to resist corrosion, making it a suitable choice for demanding marine conditions. The dual thread configurations—NPS (National Pipe Straight) and NPT (National Pipe Tapered)—allow for flexible installation on hulls with varied plumbing standards. The 1-1/4" diameter supports solid flow rates for cooling systems, raw water intakes, and through-hull drainage.
Experienced skippers often choose GROCO thru-hulls when upgrading aging systems or restoring older vessels where original fittings have corroded. The included nut ensures secure mechanical fastening, preventing loosening from vibration and sea state motion. This fitting is an essential upgrade for those looking to enhance the reliability of their vessel's plumbing systems.
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