... 3.Guarantee:6years 4.Deliver time:10days Galvanized Water Pressure TankFeatures: 1) Reliable and efficient twin-glass solar tubes ... tank/boiler, circulation pump, expansion evessel, controller,flowing meter,pressure gauge3) Capacity: 150L,200L,250L,300L,500L4) Working temperature: ... 99 celsius degree4) Working pressure: 1.0MPa (10 bar)5) Vacuum tube: D58 , ...