2001 WARD Tank Co., 6" diameter x 20' long tube bundle, Rated 150 PSI tube side, 150 PSI shell side @166 deg. Capacity Size 102 SQ FT, Pressure Rating (Temperature) 166 deg C, Pressure Rating (Pressure) 150 Shipping Weight 1000 LBS, Material of Construction ALLOY, Type of Mounting HORIZONTAL, Type of Heads DISHED.