Wide Range of Applications --- This R410A mini splitter adapter can be used in most new R410A ductless mini splitter systems. Perfectly suitable for R410a mini split air conditioners, de and refrigeration. Well-Designed Valve --- The charging vacuum port adapter of the R410a adapter has a top, will not open the central pipe of the air conditioner during operation, completely solve the problem of fluoride leakage and ensure safety. The coupling nut is deeply knurled and can be tightened quickly. The 45°90° right angle service port is easy to use. High Quality --- R410A 1/2" SAE to 1/4" SAE male bell adapter is made of high quality brass alloy, ; Easy to use and install, strong sealing force, . Useful Adapter --- Mini Split Adapter R410a Charging Suction Port Adapter The splitter converts the SAE 5/16 inch charging suction port (new style R410a) to accept a 0.64 inch SAE meter hose. Thread: 1/4 inch SAE male to 5/16 inch . Type: Straight Type Adapter Material: Copper Color: Gold Package