... .D.1/4''&3/8'',1/4''&1/2'',1/4''&5/8'',3/8''&5/8'', ... 3/8''&3/4'',1/2''&3/4''2,Copper tube:thickness from 0.5mm to ... 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- ... good heat resistance,low water absorption9,Insulation pipe can be printed with letter. Insulated Copper Tube(Pipe) Kit