【Premium Solid Brass Construction】Made of high quality solid brass with outstanding corrosion resistance and pressure resistance stable performance under high temperature harsh HVAC working conditions for long term service
【Professional Refrigerant Matching】Designed exclusively for low-GWP R32 and R454B A2L refrigerants with 1/4 inch SAE female to male reverse thread for smooth connection of refrigerant tanks and mainstream HVAC maintenance tools
【Distinct Reverse Thread Design】Left-hand male thread structure effectively avoids wrong connection with conventional fittings prevent refrigerant leakage and unnecessary equipment failure risks
【Precision Leakproof Connection】Accurately processed thread structure forms tight sealing to stop refrigerant waste non-slip knurled surface supports easy hand tightening without auxiliary tools
【Portable Reusable Accessory】Compact lightweight design easy to store and carry fully reusable to cut use cost perfectly suitable for household air conditioner mini split heat pump and commercial refrigeration maintenance work