... 58/1800SR20-58/1800SR30-58/1800andrea(_at_) suntasksolar.comSpecifications: 1) Water tank (interior): SUS304-2B food grade stainless steel2) manifold : ... 8m, 47mm x 1.5m 6) Water capacity: 150L, 200L, 300L,500L 7) Pressure: 6 barManifold(exterior):aluminum alloyGlass tube ... nylonsealssilicon sealcontact sheetsaluminum fin24hours on line service solar water panels+tank (SFCY-150,200,300,500L)