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Internet #203503051

Model #CENTREX 3000

Centrex 3000 Electric Waterless Ultra High Capacity Central Composting Toilet System in White

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  • Designed to recycle waste into fertilizing soil
  • Features a patented Bio-drum for fast decomposition
  • Unit is shipped fully assembled
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Product Overview

The Sun-Mar Centrex 3000 is an extra-high capacity unit designed for very heavy cottage use or heavy residential use. The Centrex 3000 is an electric unit for those with a constant electric supply. All Sun-Mar composting toilets incorporate a patented Bio-drum which ensures fast and odorless decomposition. Saves thousands of gallons of water, while recycling waste into soil. The unit is shipped fully assembled. A one pint flush toilet is required for use with this unit (sold separately). Seasonal capacity: 9 adults or families of 11. Residential use: 6 adults or families of 8. Other optional configurations available for this system include: 1) Waterless operation: This configuration requires the separate purchase of the Sun-Mar Dry toilet and the Sun-Mar A/F Waterless kit 2) Dual electric and non-electric operation: This configuration requires the separate purchase of the Sun-Mar AC/DC kit.

Additional Resources

From the Manufacturer

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Product Depth (in.)28.0Product Height (in.)30.0
Product Width (in.)71.0


Color FamilyWhiteFeaturesWaterless
Handle LocationTopMaterialFiberglass
Product Weight (lb.)102.0Returnable90-Day
StyleModernUse CapacityFull-Time
Weight Capacity (lb.)300

Warranty / Certifications

Manufacturer Warranty5 years on the fiberglass tank and 3 years parts replacement on all other parts

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Customer Reviews

  • 3.7
    out of 3 reviews
  • 67%recommend this product
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Showing 1-3 of 3 reviews
I have been using this unit with a Dometic 510 low water toilet for 3 months now and haven't had ...
I have been using this unit with a Dometic 510 low water toilet for 3 months now and haven't had any issues. When you first install the unit, make sure to read the instructions carefully. I didn't put a full back for Compost Sure Blue in like you are supposed to and things weren't looking good. After I read the directions and added one of the two bags that came to "prime" it with compost, it's been working really well. My screen hasn't clogged yet and there's only a minor odor outside for a couple of seconds when I turn the crank after adding the two cups of sure blue every day.
    • Recommended
    7 found this review helpful
    I love it!
    I bought this unit 5 years ago and I love it! If anyone is unhappy with this product it's because they are not using it correctly. If the proportions of moisture, waste and bacteria are correct, the composter puts out beautiful black compost. I bought a unit for my cottage and I went a little bigger than what I would need anticipating a time when I might get to spend more time there. I empty it in the spring and in the fall. It took me awhile to get used to how much moisture to add. At first there were too many wood shavings in the compost. But after adding a bit more water to the flush, I've corrected that. There is no smell whatsoever unless you stick your nose right into the compost bin opening and why would you want to do that? To the reviewer who is not satisfied with the product, I would recommend calling the customer service line at Sunmar. They are located in Burlington (conveniently for me as I live in Hamilton) and were quite helpful and patient when I called them initially with compost woes.
      • Recommended
      bad experience
      We have got that product via Home depot and are very badly unsatisfied. The apparently good combine of micro flush and compost unit is a total failure. The design is not good, the holes for drawers are too low (barely higher than the overflow out going), dangerously close to the "evaporation" chamber which in fact is hardly evaporating anything, compared to the liquids going trough the overflow. So the ecological point is lost. Plus the composting is not adequate because of anaerobic conditions and must end up in being of a very poor quality because of leaching. And the bad smell is spreading inside, in spite of that noisy fan that is supposed to bring it out trough the vent: Water and organic matter is a bad combination.
        Showing 1-3 of 3 reviews