A6 series :

Diameter of water tank: 480mm

Outer tank: Al&Zn coated steel

Inner tank: porcelain enamel
Frame: color coated steel ,if you need stainless steel frame , we could could prive it for you

Vacuum tube: 1.8m- 58mm

Insulation: polyurethane integral foam

Specification:

QBJ1-115-1.91-0.05-A6--14Tubes

QBJ1-130-2.18-0.05-A6--16Tubes

QBJ1-145-2.45-0.05-A6--18Tubes

QBJ1-160-2.74-0.05-A6--20Tubes

QBJ1-190-3.26-0.05-A6--24Tubes