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The Compact is an elegant low profile unit with the looks to complement any bathroom. Sun-Mar engineers designed this low profile toilet by developing and patenting a new variable diameter Bio-drum which is small at the front and large at the rear. To maintain the uninterrupted lines of the Compact, a patented Bio-drum handle recesses into the body of the unit to mix and aerate the compost.

The Compact differs from the Excel in that all three chambers are smaller, which makes the Compact ideally suited to light residential or light to medium cottage use.

As with the Excel, a 2" vent stack attaches to the rear of the Compact and can be installed invisibly. A 1/2" emergency drain at the rear offers protection against heavy or residential use, or prolonged power outage.