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Internet #203503055

Model #EXCEL NE (White)

Excel Non-Electric Waterless High Capacity Self Contained Composting Toilet in White

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$undefined.00 /mo* suggested payments with months* financingApply Now
  • Bio-drum ensures fast and odor-free decomposition of waste
  • Integrated footboard allows children to use the toilet
  • Offers seasonal capacity for a maximum of 7 families
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Product Overview

Since 1981, the Sun-Mar Excel non-electric self-contained composting toilet has been a reliable and easy-to-use waste recycler for those living off the grid or for those who just want to live a green existence. This high-capacity waterless commode utilizes a patented Bio-drum that hastens odorless decomposition without a fan, heater, water supply or sewer connection. It includes a 4 in. diameter rear vent which, with extra piping, can be extended up through the roof to direct odors outside.
  • Ideal for a cottage, camp, cabin, barn, camp, pool house, greenhouse or yurt
  • No electricity, sewer or water connection required (recycles waste into soil)
  • Optional Sun-Mar 12 V ventilation fan (sold separately) can be powered by marine battery or solar panel
  • Certified and listed by the National Sanitation Foundation in accordance with Standard 41 composting capability (first toilet in its class to merit this distinction)
  • Produces zero odors and zero pollution
  • Outfitted with 1 in. rear drain for excess liquids
  • Seasonal capacity intended for 5 adults or families of 7
  • Can be used in a residential setting intended for 2 adults or families of 3
  • Comes fully assembled
  • Features to consider when buying a toilet
  • Features to consider when buying a toilet
  • Click here to learn more about Eco Options and Water Conservation
  • California residents

Info & Guides

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Bowl Height without Seat (in.)
Product Depth (in.)
Product Height (in.)
Product Width (in.)
Total depth for installation (in.)


Bowl Height
Extra Tall
Bowl/Seat Shape
Color Family
Handle Location
Complete Kit,Seat
Mount Location
Power Type
Product Weight (lb.)
Seat Front Type
Use Capacity
Weight Capacity (lb.)

Warranty / Certifications

Certifications and Listings
CSA Certified,NSF Certified,NSF Listed
Manufacturer Warranty
5 years on the fiberglass tank and 3 years parts replacement on all other parts

Questions & Answers

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Customer Reviews

  • 4.3
    out of 8 reviews
  • 75%recommend this product
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Showing 1-8 of 8 reviews
Overall this works well and is easy to use and...
Overall this works well and is easy to use and functions well. Sun Mar customer service is quick to respond and helpful when questions came up during set up. 4 stars because of the maintenance costs (microbes, enzymes, compost matter).
  • Verified Purchase
  • Verified Purchase
To be installed in May
Not installed yet due to the weather. This is for a camp.
  • Verified Purchase
This is my second go around, I have been using this product for 18 years. This product is an exce...
This is my second go around, I have been using this product for 18 years. This product is an excellent example of living off the grid and leaving a small and sustainable foot print. Sun Mar is the best. Now I will have 2 of them.
  • Verified Purchase
  • Recommended
5 people found this helpful
Great product
Easy to set up, use, clean, and it doesn't have a smell! Great product. Thank you!
  • Verified Purchase
  • Recommended
This is an additional second one we have. The step...
This is an additional second one we have. The step is of no value, make your own wider and longer. Really good for a cabin.
  • Verified Purchase
7 people found this helpful
Sunmar NE is reliable and odour-free
Our first Sunmar NE is still going strong after 25 years but we needed another for our new house. There is no smell and no need to clean anything disgusting. You just turn the mixer drum to extract clean non-smelly compost every few months. Makes happy tomatoes.
  • Verified Purchase
  • Recommended
this is BAD!!!!!!
this is BAD!!!!!!
    Showing 1-8 of 8 reviews