Urine-Diverting Compost Toilet, GTG Sun-Mar
Urine-Diverting Compost Toilet, GTG Sun-Mar
Urine-Diverting Compost Toilet, GTG Sun-Mar
Urine-Diverting Compost Toilet, GTG Sun-Mar
Urine-Diverting Compost Toilet, GTG Sun-Mar
Urine-Diverting Compost Toilet, GTG Sun-Mar
Urine-Diverting Compost Toilet, GTG Sun-Mar
Urine-Diverting Compost Toilet, GTG Sun-Mar
Urine-Diverting Compost Toilet, GTG Sun-Mar
Urine-Diverting Compost Toilet, GTG Sun-Mar
Urine-Diverting Compost Toilet, GTG Sun-Mar

Urine-Diverting Compost Toilet, GTG Sun-Mar

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Regular price
$818.00 You save 8%
Unit price


Estimated Arrival: Between Mar 30 and Apr 09.
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Customer Service Have a Question? Give us a call at 509-730-5520 or send us an e-mail at info@ToiletOasis.com.

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    1. Sleek and elegant, the GTG is Sun-Mar’s smallest and most economical toilet ever. As the pioneer and category leader in composting and separating toilets, with an unrivalled model line-up, the GTG further extends Sun-Mar’s innovation, leadership and bold designs. The GTG toilet sets up in minutes and its design, modern [European] styling and ultra-compact size make it a perfect solution for any place a toilet is needed.

      Perfect for Homes, Tiny Homes, Cottages and Cabins, Boats, Farms, Warehouses, Garages, Barns, Stables, Mines, RV’s, Aircraft Hangars, Pool Houses – the list is endless and the GTG can go anywhere it’s not possible or cost-effective to install a conventional toilet.
      1. Sets up in minutes.
      2. Easy to use.
      3. Two chambers that separate solid and liquid waste.
      4. Designed to provide a low maintenance solution for any toilet requirement.
      5. For use where a conventional toilet is not an option or not cost effective.
      6. Elongated seat for extra comfort.
      7. Portable.
      8. Due to the easily accessible and removable solid and liquid chambers, the capacity of the GTG is unlimited!

      1. Need to ship to Hawaii? Please contact us for a quote.
    Sun-Mar Authorized Retailer
    1. There is a 12V dc fan 0.6W (110V, 240V) venting fan for odor free operation.
    2. Like conventional toilets, all Sun-Mar products must be properly vented per the guidelines present in the unit’s owner’s manual.
    3. The removable liquid chamber mitigates the need for a safety drain for the GTG.
    4. Height
      Width 15.75"
      Depth 24.0"
      Seat Height
      Liquid Chamber Capacity 1.85 gallons
      Solids Chamber Capacity 6.0 gallons
    5. Weight: 25 lbs (shipping weight is 33 lbs)
    6. Download a copy of the GTG Installation and O&M Manual here.
    1. Q:What is the warranty for Sun-Mar toilets?
      A:Sun-Mar’s warranty is 5 years for the tank, and 3 years for all other components of the toilet. Accessory parts are not included in this warranty, and they have a 90 day warranty period. For all warranty inquiries, the serial number will be required. Please click here for an electronic copy of Sun-Mar’s warranty, which can also be found on the back cover of your owner’s manual. Please note that, as this is a personal hygiene product, once the toilet has been used, there is a no return policy.

      Q:Is this NSF certified?
      A:Yes! Sun-Mar units are certified for cottage and residential use to NSF/ANSI Standard 41. The National Sanitation Foundation, NSF, is the only North American standard for composting toilets. Please click here to visit their website for more information http://www.nsf.org/

      Q:Is a permit required to install this toilet?
      A:All Sun-Mar composting toilets, are Certified by NSF (National Sanitation Foundation) to Standard 41. This is an Internationally recognized certification and Sun-Mar composting toilets are the only approved systems with this certification for both residential and seasonal/vacation applications. In North America, the NSF Certification to Standard 41 typically eliminates the need for permits, however in some regions (state and counties) a permit application is still required. We recommend contacting your local health department and/or building code regulator to request that information. Most states have a list of approved composting toilets which would include NSF Certified to Standard 41 at the forefront. Sun-Mar composting toilets are accepted and installed all over North America, so you should not have any issue moving forward.

      Q:Can toilet paper be used with Sun-Mar composting toilets?
      A:Absolutely, any type of toilet paper can be used in Sun-Mar units. It is a useful source of carbon for the compost.

      Q:How do I clean the toilet?
      A:The external toilet may be cleaned with a mild, nonabrasive cleaner. When cleaning the toilet bowl be sure to keep cleaning products out of the composting chamber as they may inhibit composting.
      If a complete clean out is desired, the entire toilet can be removed and washed out. We recommend removing the fan assembly prior to washing to avoid damage to electrical components.

      Q:Will I have odor with my Sun-Mar toilet?
      A:No, if installed and maintained as per instruction. Any odor is a sign that something is not quite right with either the compost, or the installation. Contact our customer service team with your serial number and we’d be glad to go over what is happening and help to resolve it.

      Q:What chemicals need to be used with the toilet?
      A:None whatsoever. Chemicals such as bleach, essential oils, and common cleaners will disrupt, if not outright kill, the compost and are not recommended for use with Sun-Mar toilets. The only materials that should be used with any Sun-Mar toilet are the appropriate Compost Sure Green or Compost Sure Blue bulking materials, Compost Quick and Microbe Mix. Consult your owner’s manual for specific instructions, or contact Sun-Mar’s customer service department for more information.

      Q:How many watts or amps power the fan?
      A:The fan draws 0.6 Watts.

      Q:Does the vent fan need to run continuously?
      A:Yes, the vent fan needs to run continuously for odor free operation.

      Q:Can the toilet be used in the winter?
      A:Yes. Composting may be affected, depending on the location and temperature where it is installed. If the self-contained toilet or Central unit is installed in a location with temperatures consistently below 50° F/15° C, the compost will go dormant and composting will stop, allowing the toilet to function as a holding tank. Removing compost from the drum to make room for some winter usage is recommended.

Customer Reviews

Based on 11 reviews
I love the sleek style, esp compared to other composting

I love the sleek style, esp compared to other composting toilets that are bulky. It's easy to use and comfortable.

No more rv dump stations!

This is a heavy duty toilet and is easy to use. I love not having to do RV dumps anymore.

William C.
Loved it

It worked as stated.

Anthony B

Product met our expectations. It is a little bit difficult to keep liquids separate from solids.

Kelly L
I would change the design

I am not able to get the urine into the bottle. I think its not a good design for women.