

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 B K/MUELLER INDS(IMPORT) 511-226HC is a 1-1/4 inch galvanized merchant coupling designed for threaded pipe connections in plumbing and piping systems. Constructed from steel with a galvanized finish, this coupling provides corrosion resistance in moisture-prone environments. It features full internal threads end to end, allowing two threaded pipe sections to be joined in a straight-run connection. Licensed plumbers and pipefitters install this type of fitting in commercial and residential piping systems where galvanized steel pipe is specified.
This merchant coupling is suited for use in water distribution, general plumbing rough-in, and mechanical piping applications where galvanized steel fittings are required. The 1-1/4 inch nominal size fits standard NPT-threaded galvanized pipe of the same diameter. It is commonly used in above-ground supply lines, utility piping, and industrial piping where a no-shoulder, end-to-end threaded coupling is preferred over a standard coupling with a center stop.
Designed as an OEM-style replacement fitting for 1-1/4 inch NPT-threaded galvanized steel pipe systems in residential and commercial plumbing applications.
Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC requirements. Shut off and depressurize the water supply before removing or installing any threaded fitting. Apply an appropriate pipe thread sealant or PTFE tape to male threads before assembly. Do not over-tighten, as this can crack fittings or damage threads.
Thanks for subscribing!
This email has been registered!