Uxcell a15121000ux0826 Red Auto Car AC Air Conditioning R134a Quick Coupler Connector Adapter Product name: quick coupler; material: metal Package content: 1 x quick coupler; Color: Red Dimension: 7 x 4. 8cm/ 2. 8" x 2"(LW) Thread diameter: 10mm/ 0. 4" Hole diameter: 16mm/ 0. 63"