Heavy-duty one-piece steel tank. Triple baked enamel finish & fitted with fully sealed, magnetic drive pump unit. Fluid recirculated through replaceable filter element & directed onto workpiece through flexible metal delivery nozzle. Turbo agitation bubbles air through fluid to reduce pre-soaking time & requires workshop air supply in addition to 230V electrical supply. Can be used without turbo agitation if desired. Lid of tank fitted with fusible link hinge which automatically snaps lid shut in the event of a fire. Supplied with removable shelf & parts basket. Model No. SM20