Air Conditioner Coppr Tube for Air-Conditioner. 1. O.D.: 1/4"-4 1/8" 2. W.T.: 0.40mm-3mm 1. Air Conditioner Copper Tube for Air-Conditioner : Copper Pancake Coil and Copper Straight Pipe2. Outside Diameter: 1/4"-4 1/8"3. Length: 5.8m, 6m, 15m, 18m, 30m.4. Temper: Hard, Half Hard, Soft5. Standard: ASTM B280, EN12735, JIS H3300, AS1571.6. Package: Carton Box, Iron Frame.