Used working Lab-line aquabath water bath dual chamber - temperature regulator works fine for both chambers (regulates independently), ,  heats up pretty fast, . Inside  Bath   dimensions 12x6x6 and 12x12x6 inches.  115v,. The clear acrylic gable covers allow the bath to reach maximum temperature.; If not satisfied, You can return this unit within 14 days  for a full refund minus shipping both ways. Lot farwalltopright