Mueller Industries, Inc.
Mueller Industries Brass Compression Repair Coupling 1/2" IPS & 3/4" CTS 160-304NL
A brass compression repair coupling joins 1/2 inch IPS and 3/4 inch CTS pipe, rated 125 psi at 210 degrees Fahrenheit with lead-free construction
- Size1/2" IPS & 3/4" CTS
- Lead-free brass construction for safer potable water systems
- Compression design enables solder-free repairs on galvanized or copper pipe
- Dual-size fit covers 1/2" IPS and 3/4" CTS with one fitting
- Rated 125 psi at 210 °F for reliable service under pressure
- Rubber gaskets create a watertight seal without threading or flux
Brass Compression Repair Coupling
The Mueller Industries brass compression coupling joins 1/2 inch IPS and 3/4 inch CTS pipe sizes in a single fitting. It suits plumbers and maintenance crews repairing galvanised or copper water lines. The lead-free brass body and nuts meet potable-water requirements while handling supply pressures up to 125 psi at temperatures up to 210 F.
Installation steps and common issues
Slide the brass nuts and rubber gaskets onto each pipe end, insert the pipe fully into the coupling body, then tighten the nuts to compress the gaskets. The joint relies on compression only, so the pipe must be externally restrained after assembly to prevent pull-out. Leaks usually mean the pipe was not fully seated or the nuts were not tightened evenly.
Check your existing pipe before ordering
Verify that the two pipe sections match the 1/2 inch IPS and 3/4 inch CTS designations exactly. Confirm the system pressure stays below 125 psi and the water temperature does not exceed 210 F. Ensure you have a method to restrain the pipe once the coupling is installed.
Highlights
- Lead-free brass construction for safer potable water systems
- Compression design enables solder-free repairs on galvanized or copper pipe
- Dual-size fit covers 1/2" IPS and 3/4" CTS with one fitting
- Rated 125 psi at 210 °F for reliable service under pressure
- Rubber gaskets create a watertight seal without threading or flux
Specifications
| Brand | Mueller/B & K |
|---|---|
| Size | 1/2" IPS & 3/4" CTS |
Questions about this item
How can I verify the 160-304NL coupling is sealing correctly after installation?
Pressurise the line to the 125 psi rating and inspect the brass compression nuts and rubber gaskets for any water escape; the pipe must be restrained so movement cannot break the seal.
What components come with the 160-304NL and what must I supply?
The coupling includes a brass body, two brass compression nuts and rubber gaskets; you must provide the 1/2" IPS or 3/4" CTS pipe and a pipe-restraint system.
Which size variant of the 160-304NL should I select for my repair?
This single model fits both 1/2" IPS and 3/4" CTS pipe, so choose it when the repair involves either of those two diameters.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
