19124 – LEFT HAND THREAD ADAPTOR (A2L)

A2L refrigerants like R-32 and R-454B use left-hand (reverse) thread service ports to prevent accidental cross-contamination with older refrigerants. This Yellow Jacket adapter converts between 1/4″ left-hand female flare and 1/4″ right-hand male flare so you can connect standard gauge sets to A2L systems.

Specs: 1/4″ LH FFL x 1/4″ RH MFL, brass, for A2L refrigerant service

Replaces: 19124, AD44LH

Fits: A2L refrigerant systems (R-32, R-454B, etc.) with left-hand thread service ports. Universal adapter for all HVAC brands.

In stock at Open To Public HVAC Parts in Dallas. We test parts at the counter before you buy. Call or text (214) 340-9421.

Cross-reference numbers

This part replaces the following OEM and aftermarket numbers:

• 19124
• JB
• JBEQUIVALENT
• ROBINAIR
• ROBINAIREQUIVALENT
• YELLOWJACKET
• YELLOWJACKETEQUIVALENT

Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.