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The AQUALINE GPN-75-12 is a Schedule 40 galvanized steel pipe nipple used to connect threaded pipe sections in water supply, gas distribution, and general plumbing systems. Measuring 0.75 inches in diameter and 12 inches in length, it provides a rigid, corrosion-resistant connection between fittings, valves, and other threaded components. The hot-dip galvanized coating protects the steel substrate against rust and scale, making it a reliable choice in wet or exposed service environments. Licensed plumbers and pipefitters install this type of nipple as part of new construction and repair work across residential and light commercial plumbing systems.
This nipple is suited for use in potable water supply lines, irrigation systems, compressed air distribution, and low-pressure gas piping where Schedule 40 wall thickness is specified. It threads directly into standard NPT fittings, tees, elbows, valves, and couplings. The 12-inch length makes it appropriate for spanning moderate distances between fittings without requiring a full pipe section and additional couplings.
Designed as an OEM-style replacement and standard-service nipple for use with 0.75 inch NPT threaded plumbing fittings and components in Schedule 40 galvanized steel piping systems.
Installation is performed by a licensed plumber or pipefitter in accordance with local plumbing codes and the International Plumbing Code (IPC) or International Fuel Gas Code (IFGC) as applicable. Shut off the water or gas supply and depressurize the line fully before threading the nipple into place. Apply an approved thread sealant or PTFE tape to the NPT threads before assembly to ensure a leak-free joint. Do not over-tighten threaded connections, as this can crack fittings or strip threads.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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