... Beautiful design It works above -36 degree AAA pressurized solar collector mainfold is made of 100% aluminium.1)The ... the demand of large water consumption.Product name:Pressurized solar collectorModel:SP-HT5818Features: 1)Vacuum tubes: Heat ... , 30, 36, 2X16, 2X20, 2X25, 2X30 tubes 6)Pressurized water tank: 100L, 150L, 200L, 250L, 300L, 400L, ... 0.06material of coatingSS-C/CU Pressurized solar collector