We have two models of this collector which uses superconduction metal heat-pipe vacuum tube. Each solar collector includes manifold, tubes, nylon feet holder, rubber sealing ring, bottom track and side track, joint bellow pipe using for connection. The manifold box is sealed in a weather resistant metal cover. There is a thick polyurethane foam jacket or rock wool to keep warm. The copper inlet and outlet pipe has 22 mm diameter. The approximate overall dimensions, weight, water capacity and net absorber area are given in the following table: border=0>