

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The MERIT BRASS 2124-400 is a brass pipe nipple measuring 1-1/2 inches in diameter by 4 inches in length. Threaded on both ends, it serves as a short pipe extension or connector between fittings, valves, and equipment in plumbing, HVAC, and mechanical systems. Machined from solid brass, this nipple resists corrosion and handles the moderate pressures typical of water, gas, and steam service lines. Plumbers and pipefitters install it wherever a close or short extension is needed to make up a run between two threaded components.
This nipple is suited for residential and light commercial applications including water supply lines, boiler connections, gas distribution piping, and general mechanical systems. Its 1-1/2 inch diameter fits standard pipe schedules and mates with NPT-threaded fittings, valves, and unions. The compact 4-inch length makes it a go-to choice when a close nipple is too short but a longer nipple would create clearance problems in tight mechanical spaces.
Designed as a standard NPT-threaded replacement or extension nipple for 1-1/2 inch pipe systems in residential and commercial plumbing, HVAC, and mechanical piping assemblies.
Install using a pipe wrench with appropriate thread sealant tape or compound rated for the service medium. Shut off and depressurize the system before removing or installing any threaded fittings. Follow applicable plumbing codes such as the IPC or IFGC depending on the service type. Do not over-tighten brass fittings, as the material is softer than steel and susceptible to thread damage from excess torque.
Thanks for subscribing!
This email has been registered!