Groco Bronze Thru-Hull Fitting with Nut, 1-1/4 Inch Hose Barb (HTH-1250)

The Groco HTH-1250 is a bronze thru-hull fitting sized for 1-1/4 inch hose, designed to create a permanent, through-the-hull connection point for a boat's plumbing systems such as raw water intake, bilge discharge, or livewell drains. Solid bronze construction resists corrosion from constant saltwater or freshwater exposure below the waterline, making it suitable for long-term below-the-waterline service. The barbed hose end allows a standard 1-1/4 inch hose to be clamped securely in place, while the fitting mounts through a drilled hull opening and is secured from the inside with the included nut, sandwiching the hull material between the fitting head and the nut for a watertight, mechanically sound installation. At 4 inches long and 3 inches across, the HTH-1250 is sized for typical hull thicknesses found on recreational boats. Because it is bronze rather than plastic, it holds up to UV exposure, marine growth, and the mechanical stress of hose clamping better than lower-cost alternatives over time. This fitting is intended as a below-waterline through-hull for hose-connected systems and should be paired with an appropriate seacock or valve where shutoff capability is required.

Specifications

• Brand: Groco
• Manufacturer Part Number: HTH-1250
• Material: Bronze
• Color/Finish: Bronze
• Hose Size: 1-1/4 inches
• Product Length: 4 inches
• Product Width: 3 inches
• Weight: 1.05625 pounds
• Included Hardware: Mounting nut
• UPC: 742985005235

Frequently Asked Questions

What hose size does the Groco HTH-1250 fit? The Groco HTH-1250 thru-hull fitting is barbed for 1-1/4 inch hose.

Is the HTH-1250 made of bronze or plastic? The HTH-1250 is a bronze thru-hull fitting, chosen for its corrosion resistance in below-waterline marine applications.

Does the HTH-1250 come with a mounting nut? Yes, the Groco HTH-1250 includes the nut needed to secure the fitting from the inside of the hull.

How much does the HTH-1250 weigh? The HTH-1250 weighs 1.05625 pounds.

What are the dimensions of the HTH-1250 thru-hull fitting? The Groco HTH-1250 measures 4 inches long by 3 inches wide.

Can the HTH-1250 be used below the waterline? Yes, the bronze construction of the HTH-1250 is intended for below-waterline use where ongoing water exposure and corrosion resistance matter.

Does the HTH-1250 include a seacock or shutoff valve? No, the HTH-1250 is the thru-hull fitting and nut only; a separate seacock or valve is needed where shutoff capability is required.

How is the HTH-1250 installed? The HTH-1250 passes through a drilled hull opening and is secured from the inside using the included nut, with hose clamped onto the barbed fitting on the outside.

Why choose a bronze thru-hull like the HTH-1250 over a plastic one? Bronze construction, as used in the Groco HTH-1250, offers better long-term resistance to UV exposure and mechanical stress from hose clamping compared to plastic thru-hulls.

What systems is the HTH-1250 typically used for? The Groco HTH-1250 is used for hose-connected plumbing systems such as raw water intake, bilge discharge, or livewell drains.