Pressurized water tank features: 1)Volume: 80L,100L,150L,200L,250L,300L,400L,500L,600L 2)304 stainless steel inside body 3)With 50mm thickness of insulation. 4)Optional casings: white painting ,red painting,, stainless steel casings 5)Life time of 15-20 years. 6)Can be used as storage tank. 7)With inside heater exchanger for option. 8)For 24hours operation, the heating loss is only 10-15%. 9)5 years warranty.