air conditioner copper pipe 1)Copper tube:OD:1/4,&3/ ... /8,&3/4, (2) Length:3,4,6,7,10, air conditioner copper pipe Twin/pair insulated(isolated) copper tube/pipe ... etc.6,PE insulation pipe:I.D.from Φ8 to Φ22.7,PE insulation pipe:thickness from 8mm to 10mm.8 ... ,low water absorption9,Insulation pipe can be printed with letter. air conditioner copper pipe & Air conditioner parts