... High efficiency freezing resistance 14mm&24mm heat pipe condenser Solar heater collector mainfold is made of 100% aluminium:1)The ... combination, which can meet the demand of large water consumption.Name: Pressurized Solar collector Model: SP-HT5818Features: 1)Vacuum tubes: ... 25, 30, 36, 2X15, 2X20, 2X25, 2X30 tubes 6)Pressurized water tank: 100L, 150L, 200L, 250L, 300L, 400L, 500LTechnical data:total ...