... Solar working station5) Steel tube dimensions: 58mm x 1.8m, 47mm x 1.5m 6) Water capacity: 150L, 200L, 300L,500L ... _at_)suntasksolar.comManifold(exterior):aluminum alloyGlass tube dimensions:58mmX1.8m/58mmX0.85mDaily efficiency:>55%Hail resistance:25mmMax pressure: ... 1940*350*2702*1940*350*180certificateEN12975-1,2 SOLAR KEYMARKEN12975-1,2 SOLAR KEYMARKEN12975-1,2 SOLAR KEYMARKMaterial vacuum tubehigh ...