FEATURES: A Tee branched Connector with 1/4" male flare connector to hook up a vacuum gauge/micron gauge or something else. One end, Female 1/4" SAE flare FFL (the common size of many service tools like manifold hose connector and refrigeration system service ports), with valve core depressor built-in. Another two ends 1/4" SAE male flare MFL Specifications: Materials: Solid Brass Connections: 1/4" Male flare X 1/4" Male flare X 1/4" female SAE flare with swivel Connector c/w Valves Core, and seal rings. Package included: 1Pc x Tee Adapter. .