Introducing the 19037 Yellow Jacket O-ring for Anti-Blowback Back Fittings, a high-quality ring made in the USA. This product is designed for charging purposes and is compatible with various refrigerants including R-409a, R-134a, R-600a, R-12, R-404a, R-407c, R-416a, R-22, and R-123. The ring comes in black color and is brand new, with no modification or customization done.

This product is perfect for HVAC & Refrigeration professionals who need a reliable and durable tool for their work. Please note that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Get your hands on the 19037 Yellow Jacket O-ring for Anti-Blowback Back Fittings now and experience its quality for yourself!