Sun-Mar Toilet Compact

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. A 1/2" emergency drain at the rear offers protection against heavy or residential use, or prolonged power outage.
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The Sun-Mar Compact is an elegant, low profile, medium capacity, electric composting toilet. All Sun-Mar composting toilets incorporate a patented Bio-drum which ensures fast and odorless decomposition. The Compact is especially popular for use in cabanas, guest houses, light cottage use or any remote place where there is an electrical connection but no plumbing. Saves thousands of gallons of water, while recycling waste into soil. The unit is shipped fully assembled. To install, simply plug into a regular 110-Volt outlet and connect the supplied 2 in. vent stack. Seasonal capacity: 3 adults or families of 4. Residential use: 1 adult.

  • No water or sewer connections required
  • No pollution
  • No odor
  • Certified and listed by ANSI/NSF



Listed capacities refer to the amount of people, on average, using the unit per day. Do not pick a unit that is below your capacity.

Residential/Continuous (Adults/Families)

1 adults or families of 2

Seasonal/Vacation (Adults/Families)

3 adults or families of 4


Electricals must be connected while the unit is in AC use for proper operation

Maximum Amps (With Heater On)


Fan Watts (Required or Optional Hookup)


RequiredHeater Watts (When Thermostat switches it on)


Average Power Use in Watts (Heater on 1/2 time)


Vent & Drains

Vent Pipe

2" PVC Thinwall

Drains (Required or Optional Hookup)

3/4" O.D optional

Weights (Lbs.) & Dimensions

Product Weight/Shipping Weight


Shipping Carton Dimensions (W by L by H)

28" by 35 1/2" by 30 1/2"

Depth Required to Remove Drawer


Vent outlet center distance from right side

7 1/2"

Height to center of vent

23 1/2"

Unit Height/Width/Depth

28 1/2" by 21 1/2" by 33"

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