Model:DY58/1800-24 Capacity:200L Tr-element hitech Vacuum Tube : Material:High Boronsilicon 303 Glass Szie: Ã?58mm*1.8mm QTY:24pcs Improve solar energy absorptivoty more than 24% than general tube,double layer glass tube between two layer vacuate (vacuum degree more than 1.33Ã?10-3Pa) packaged .Adopt PEPAC Multi target interference film technique add purple paint at the basic technology of megnetron sputtering technology deposits more layer gradual changed selective suction membrane on inner and ouer tube wall.Solar energy absorptivity more than 97%.Thermal emissivity lower 6%. Air Stuffy temperature up to 280â??,good heat-insulating property.ï¼?40â?? also use in winter.Bear diameter 2.5mm hail attack. Water Tank :Inner Tank +Insulation Layer+Outer Tank Inner Tank: material:SUS304-2B Food Grade Stainless Steel Szie:Ã?360*1860mm , Thickness:1.2mm , Hole Distance 750mm Permanent insulation, 304 stainless steel inculde Chromium,forms Chromium oxidation protective film to protect tank body in surface,Show Matt,No rust Insulation Layer: Material:Polyurethane Foam ,Thickness 5.5-6.0cm , high temperature and high pressure Using electronic measurementand integral foaming technology,Primary molding,Super insulation,Keep warm time over 72hours,with thickened foaming layer. Outer Tank: Material:304/202 Stainlees Steel Size:Ã?460*1950mm, Thickness:0.31mm , Hole Distance 750mm,Rivet free inner buckle head cap Bracket : Material: Al-alloy Size:1940mm, Thickness15mm Angle:45degree, easy install/dismantle,Free offer stailess steel 202 nuts and screw Packing Details as following: Vacuum Tune (58mm*1.8m): 8pcs/CTN,Size:1870*270*165;10pcs/CTN Size:1870*330*165mm 12pcs/CTN,Size:1870*270*240mm ;15pcs/CTN,1870*330*240mm 40'HQ:6640-7290 pcs; 20'GP:2600pcs Water Tank Packing Szie:480*480*1970mm Bracket Packing Size:320*110*2000mm Remark 1. MOQ: 100set, With Certificated :CE,RoHS ,Energy consumption label. 2. Payment Term: 1). T/T, 30% deposit, Pay balance after see copy B/L. 2).West Union Pay 3). L/C 3. Leadtime: 10-15days 4. Lifetime: Vaccum Tube : 15years, Water Tank:15years, Bracket:15years 5. Price Will Be Reduce 10% If Choose Outer Tank Material :Color Steel Plate; Bracket Material: Galvanized Steel