Description
Product Summary
The Mueller CFW01904 is a 3/4-inch OD no-stop copper repair coupling for brazing refrigerant line sets and field piping on split systems and heat pumps.
With no internal stop, it slides fully over the tube, so you can repair a damaged section of line without spreading the existing pipe.
Key Features
- ACR OD sizing: matches 3/4-inch OD refrigerant tubing.
- Wrot copper construction: brazes cleanly with standard HVAC alloys.
- Line set routing: joins straight runs on suction and liquid lines.
- Connection: C x C ends.
- Stop: No stop (slip).
Specifications
| Brand | Mueller |
|---|---|
| Model | CFW01904 |
| Manufacturer Part Number | W 01904 |
| Fitting Type | No-Stop Copper Repair Coupling |
| Tube Size | 3/4 in OD |
| Connection | C x C |
| Material | Wrot copper |
| Stop | No stop (slip) |
Ideal Applications
- Refrigerant line set installation and repair
- Split system and heat pump change-outs
- Mini split and air handler field piping
Frequently Asked Questions
What tube size does it fit?
It fits 3/4-inch OD copper tubing.
What does C x C mean?
C (cup) ends accept tubing on both sides.
Can it be used on R-32 and R-454B systems?
Copper ACR fittings are commonly used on these systems; follow the equipment manufacturer brazing and pressure-test instructions.
