air conditioning pipe insulation&a/c fitting 1)Copper tube:OD:1/4,&3/ ... ) Length:3,4,6,7,10, air conditioning pipe insulation&a/c fitting Copper Tube for Air ConditionerTwin/pair insulated(isolated) copper tube/pipe ... any gases:R22,R407C,R410A,R404A,R507C etc.6,PE insulation pipe:I.D.from Φ8 to Φ22.7,PE ... insulation pipe:thickness from 8mm to 10mm.8,Character:Anti-UV, ...