USEFUL ADAPTER --- Converts the 5/16" SAE charging-Vacuum ports (new R410a style) to accept 1/4" SAE gauge-hose set. 1/4" Male SAE x 5/16" SAE Female Adapter.WIDE APPLICATION --- Used on most newer R410A ductless mini split systems. Perfectly fits for R410a mini split system air conditioners, HVAC and refrigeration service.WELL-DESIGN VALVE --- This connector has a thimble, in the course of the operation, it will not open the air conditioning core tube, completely solve the problem of fluoride leakage injury, security is guaranteed. The coupler nuts are deeply knurled for quick finger-tightening. With 45° angle on the service port site for easier access.PREMIUM QUALITY --- Made by high quality Brass Alloy, last long; Easy to operate and install, strong sealing for durability and safety.1 YEAR WARRANTY --- Order R410A hvac mini split adapter from Aupoko, we can offer 12 months warranty.Should be there any issues with the r410a refrigerant adapter, simply contact customer service for replacement or refund in limited time. Product Description Package Includes: 2Pcs R-410A Adapter (1/4" SAE M to 5/16"F) Used for R410a with Thimble Mini Split System, HVAC and Refrigeration Service. Features: Convert 1/4" male SAE to 5/16" female SAE swivel adapter perfectly fits for R410a mini split system air conditioners, HVAC, and refrigeration service.This connector has a thimble, during the operation, it will not open the air conditioning core tube, completely solve the problem of fluoride leakage injury, security is guaranteed.100% test as per SAE, EPA and UL requirements. Specifications: Material: BrassColor: GoldThread: 1/4" male SAE to 5/16" female.Type: Straight type adapter 2Pcs R-410A Adapter Material: Brass Color: Gold Type: Straight type adapter 1/4" male SAE This connector has a thimble, in the course of the operation, it will not open the air conditioning core tube, completely solve the problem of fluoride leakage injury, security is guaranteed. 5/16" female The coupler nuts are deeply knurled for quick finger-tightening. With 45° angle on the service port site for easier access.