JB Industries
JB Industries QC-S4A-134a Quick Coupler 1/2 Acme M x 1/4 F
Quick coupler for refrigeration hoses with 1/2 Acme male and 1/4 female connections
- Designed for 134a refrigerant systems
- Brass construction resists corrosion during service
- 1/2 Acme male to 1/4 female thread fit
- Quick connect and disconnect speeds hose changes
- Built by JB Industries for HVAC reliability
Quick Coupler for 134a Systems
This brass quick coupler connects 1/2 inch Acme male threads to 1/4 inch female threads. It is designed for use with quick connect and disconnect refrigeration hoses. The fitting suits HVAC technicians servicing compatible refrigerant systems.
Replaces Worn or Incompatible Fittings
Swap out a damaged coupler or adapt an existing hose assembly when the thread pattern does not match. The upgrade is worth it when a secure, tool-free connection is needed to prevent refrigerant loss during service.
Suits Technicians Working With Quick-Connect Hoses
This coupler fits professionals who rely on quick-disconnect hose sets for 134a applications. It is not for buyers who need a different thread size, a valve core removal feature, or a coupler rated for other refrigerant types.
Highlights
- Designed for 134a refrigerant systems
- Brass construction resists corrosion during service
- 1/2 Acme male to 1/4 female thread fit
- Quick connect and disconnect speeds hose changes
- Built by JB Industries for HVAC reliability
Specifications
| Brand | JB INDUSTRIES |
|---|
Questions about this item
What thread size does the 1/2 Acme male end require on the hose or manifold?
The male end uses a 1/2 inch Acme thread that mates with a matching female Acme fitting on the hose or manifold.
How do you secure the coupler onto a 1/4 inch female flare port without cross-threading?
Align the 1/4 inch female flare nut squarely, hand-tighten until the brass seats, then finish with a wrench — do not force the threads.
When should the internal seal or O-ring be inspected on this brass quick coupler?
Inspect the seal each time the coupler is disconnected; replace it if the brass shows wear or if refrigerant leaks appear at the connection.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.



