

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 MB12510 is a press reducing coupling designed for joining copper or compatible tubing of two different diameters in a single connection. The fitting transitions from a 2-inch end to a 1-1/4-inch end using a press-style connection method, eliminating the need for open flame or soldering during installation. This type of fitting is commonly installed by licensed plumbers in residential and light commercial hydronic, potable water, and mechanical piping systems where a permanent, reliable transition between pipe sizes is required.
The MB12510 press reducing coupling is suited for applications where reducing pipe diameter is necessary within a run, such as branch takeoffs, equipment connections, or system retrofits. Press fittings are frequently chosen in occupied spaces or retrofit scenarios where torch work is restricted or impractical. The fitting is appropriate for use in systems where press-style tooling is available and where the system's operating pressures and temperatures fall within the fitting's rated parameters.
Designed as an OEM-style press reducing coupling for use in residential and light commercial plumbing and hydronic piping systems requiring a 2-inch to 1-1/4-inch press-style transition.
Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines. Shut off and depressurize the system and ensure pipe ends are clean, deburred, and properly marked before pressing. A calibrated press tool with the correct jaw size for each end of the fitting is required. Do not attempt to press the fitting without the manufacturer-specified tooling, as improper pressing will result in a failed seal.
Thanks for subscribing!
This email has been registered!