... ,Aluminum Alloy,Thickness,1.8mm,Insulating layer,compressed rock woolHeat Pipe pure red copper TU1+water,transfer power>=150W,Working pressure,4Mpa,welding ... .330.390.5Container Loading Quantity(set)20102787763574022116916613613040HQ278213209172171Price(USD) EU separate copper pipe high-press solar collector for bathroom 300L or 500L