Solar water heater Features: 1) stable and reliable performance and well wind resistance 2) vacuum heat-collecting tubes at high temperature 3) dual-purpose brackets for both flat and inclined roof 4) meeting the demand of well-to-do families 5) economical goods Specifications: 1) thickness of bracket: 1.5mm 2) heat-pipe vacuum tube: 47 mm x 1.5m 3) inner tank: sus304-2b food grade stainless steel 4) outer tank: steel (spray-paint and looks like china paint) 5) capacity: 98/110/130/150/180/210/240/300/300l 6) insulating layer thickness: 55 - 60mm 7) inner tank thickness of: 0.4 - 0.5mm 8) tank diameter: 460mm 9) pressure: 0pa 10) heat preservation: 72hrs 11) hail resistance: 25mm