Guaranteed lowest prices in the USA! Details...

Sun-Mar Centrex 2000 Central Composting Toilet

Sun-Mar Centrex 2000


Availability: 2 to 3 weeks

Handles residential use for families of 6 (4 adults) or vacation use for families of 9 (7 adults).

SKU: 44817

Sun-Mar Centrex 2000 Central Composting Toilet System

For shipping to Alaska or Hawaii, please call us at 800-919-2400 to order this product.

Perfect for medium to heavy seasonal or light residential use, the Sun-Mar Centrex 2000 Central Composting Toilet System allows for both a longer composting cycle and larger waste volumes than the Centrex 1000. The increased surface area in the evaporating chamber, coupled with the larger heating element, provides excellent evaporation.

When used seasonally by families of up to 9 (7 adults), compost will normally only need removing in the spring. When used residentially by families of up to 6 (4 adults), some compost will need to be emptied into the finishing drawer once every few months.

The Centrex 2000 features a 370-Watt thermostatically controlled heater in a sealed compartment under the unit, a 30-Watt fan, and a 2" vent stack to remove evaporating liquid and fresh odors. Includes a 1" drain hose that should be connected to the 1" drain at the bottom of the unit.

The included fan and heater run on AC power (115V). An AC/DC conversion kit is available separately above, which allows the Excel to operate in either 12-volt DC or non-electric mode. The toilet will continue to vent through the 2" vent using AC power when available, and will switch to a new 4" vent stack (included in the AC/DC kit) when AC power is not available. An optional 12-volt fan (included in the AC/DC conversion kit) can be installed in the 4" vent to use DC power to assist with venting.

Low-Flush or Waterless?

By default, the Centrex 2000 is designed for use with one or more Sun-Mar Low-Flush Toilets (available separately above).

To make the system waterless (dry flush), use the Sun-Mar Waterless Kit and one or more Sun-Mar Dry Toilets (available separately above).

Sun-Mar Centrex 2000 Central Composting Toilet System Specs

  • 28" H x 27" D x 45½" W
  • 45" D required to remove drawer
  • 49" W required for turning
  • 97 lbs
  • Residential/continuous use capacity: 4 adults or families of 6
  • Seasonal/vacation use capacity: 7 adults or families of 9
  • Vent pipe: 2" PVC thin wall
  • 1" drain hookup required
  • Fan: 35W
  • Heater: 370W

About Sun-Mar Composting Toilets

Sun-Mar Composting Toilets save more than 10,000 gallons of water per year, keep water clean for drinking and swimming by not polluting groundwater, and recycle human waste into safe, usable soil. And because their aerobic decomposition produces no sewer gases, they are odor-free! Installation directly into the bathroom is a snap because no water connection is required. Everything for installation and start up, including the vent stack, is included. Great for use in homes, cottages, weekend cabins, pool houses, barns, stables, workshops, or off-grid applications - anywhere you want to minimize your ecological footprint. Real Goods has sold thousands of Sun-Mars with almost universal satisfaction. NSF/ANSI certified. Five year parts-replacement warranty.

This product is shipped directly from the manufacturer or distributor and will arrive separately from any other products ordered. Availability estimates are based on average lead times and can vary due to stock status and location.

Returns & Replacements
Regularly stocked, non-special-ordered, and non-custom-built items can be returned for a refund within 30 days of receipt if unused and in original packaging. Returns of solar panels, inverters or other large ticket items will incur a re-stocking fee of up to 30%. Freight shipping is non-refundable.

For more, please read our full return policy.

Write Your Own Review

Only registered users can write reviews. Please, log in or register