2pcs R-1234yf High and Low Couplers Adjustable Conneter Adapter with 1/4 Malefor A/C Refrigerants Manifold Gauge Set _x000D_ _x000D_ Features: _x000D_ _x000D_ New & High-Quality parts. _x000D_ _x000D_ Heavy duty low loss refrigerant manual coupler, 12mm fitting for access to R1234yf hose. _x000D_ _x000D_ High and low couplers with extended disconnect protection sleeve _x000D_ _x000D_ Meets SAE J639 & J2888 _x000D_ _x000D_ Allows recovery of entire refrigerant, including the space between the coupler and fitting. _x000D_ _x000D_ Includes adapters to fit to R12 R22 Hose (1/4" SAE). _x000D_ _x000D_ _x000D_ _x000D_ Specifications: _x000D_ _x000D_ Item: R1234yf COUPLERS _x000D_ _x000D_ Material: Brass and Aluminum Alloy. _x000D_ _x000D_ High Side R1234yf Coupler (Red): M12mm-Female x 17 mm _x000D_ _x000D_ Low Side R1234yf Coupler (Blue): M12mm-Female x 14 mm _x000D_ _x000D_ Adapters: M12mm-Male x 1/4" SAE Male. _x000D_ _x000D_ _x000D_ _x000D_ Package Include: _x000D_ _x000D_ 2Pcs x R-1234yf High and low couplers. _x000D_ _x000D_ 2Pcs x Adapters. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_