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Internet #309740544

Model #GTG Toilet

GTG Portable Electric Waterless Toilet

Frequently Bought Together


Product Overview

The Sun-Mar GTG toilet's sleek European styling, ultra-compact size and odor free operation make it a great solution for any bathroom. This toilet automatically separates solid and liquid waste into two separate chambers. Perfect for: Boats, Tiny homes, cottages and cabins, RVs, Farms, Basements, Warehouses, Greenhouses, Garages, Barns, Stables, Trailers, Mines, Aircraft Hangars, Yurts, Pools, Sheds and more.

Info & Guides

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


Bowl Height
Chair Height
Bowl/Seat Shape
Color Family
No Additional Features,Waterless
Handle Location
Hardware,No Additional Items Included,Seat
HDPE (High Density Polyethylene)
Mount Location
Floor Mount
Product Weight (lb.)
25 lb
Seat Front Type
Use Capacity
Weight Capacity (lb.)

Warranty / Certifications

Certifications and Listings
ADA Compliant
Manufacturer Warranty
1 Year

Questions & Answers


If I have an Excel model now, will the vent tube of this portable electric waterless be able to b...

Asked by Cindy May 14, 2021

What about this is electrical? I don't see any thing that would suggest it needs electricity.

Asked by Rrorra February 10, 2021

Hello, Thank you for your question. There is a 12V (0.6 watt) fan which is incorporated into the vent assembly. This fan can be powered using an adapter, which is included with the toilet and can be plugged into a standard outlet. Please do not hesitate to contact Sun-Mar should you have any additional questions: Toll Free at 1-888-341-0782 Ext. 232. Thank you.

Can this be installed in a wet bath? Will water be able to infiltrate the toilet from the outside?

Asked by JCM September 23, 2020

no, water wont infiltrate the toilet

What fittings come with the toilet ? Is there any ducting provided,if so, what?

Asked by Del August 5, 2020

How much power does the unit consume Volts, Amps

Asked by Mufasa February 20, 2020

Hello, Thank you for your question. The Sun-Mar GTG toilet gives you the option of using a 12V dc 0.6W fan. If you prefer to use it with ac power, we do include an ac adapter with the toilet. There are no other parts to this toilet which require power. Please do not hesitate to contact Sun-Mar should you have any additional questions: Toll Free at 1-888-341-0782 Ext 232. Thank you.

Can I buy parts for this toilet?

Asked by Confused January 21, 2020

Hi Confused. Thank you for your question. The SUN-MAR Corporation warrants the original purchaser that this toilet is free from defects in material and workmanship under normal house or cottage use. The SUN-MAR Corporation will furnish new parts for any part that fails within one year, provided that our inspection shows that such failure is due to defective material or workmanship. Any part supplied by us to replace another part is warranted for the balance of the original warranty period. For more information about parts you can contact Sun-Mar at: 1-888-341-0782 EXT 232 Please let us know if we can be of further assistance. Rick_HD_OC

description says 12v fan. can i wire directly into 12v source (battery) without using the a/c co...

Asked by sgtalexmom November 15, 2019

Yes it can

Is this toilet U.S. Coast Guard approved for marine use? Is it legal to use this toilet on a boat?

Asked by Jim November 5, 2019

Yes it can. Has two area on the side that can be bolted down and secured.

If it’s a composting toilet... how is it composting without the dry composting materials being pu...

Asked by Toodles October 15, 2019

It has a liquid diverter and a fan+vent for drying the poo.

does it come with a lid/cap/plug for the liquids container to avoid spills when carrying it to em...

Asked by sgtalexmom October 3, 2019

It did NOT come with a screw cap, but a cover should be able to be affixed relatively easily. Good idea for the product manufacturer. You should send SunMar a note. :)

GTG Portable Electric Waterless Toilet - page 2

Customer Reviews

  • 3.6
    out of 29 reviews
  • 33% recommend this product
Filter by:
Showing 1-10 of 29 reviews
We have purchased two of these now for various cabin...
We have purchased two of these now for various cabin projects so clearly that is some sort of a testimonial. They are clean and efficient and the second one we altered to work on an all 12v solar hookup. They work well but I'm not sure how they justify the cost and you do need to keep a close eye on the urine level to prevent overflows which will burn out the fan.
4 people found this helpful
I waited a long time for the perfect toilet - this is it.
This is the quintessential KISS toilet -"Keep It Simple Stupid". No gears to gum-up, no bells or whistles, just doing a great job of making composting simple and sustainable. Dilute the urine 15:1 - water to urine, and it is safe to put directly on your flower/vegetable garden (urine is sterile, so no worries as long as it has not been contaminated with 'solid matter'). The 'solid matter' I compost for a year or two, and then use on my vegetable garden. Use common sense when handling this composting material, and you won't have any issues. I am over seventy years old, and have been doing this for decades without any problems, but you can't be casual about frequently emptying the system, and maintaining excellent hygiene habits. Goodbye to all the other systems I have tried - the five gallon bucket being one of them, and, actually, second best - but so much more work/smell. We spent well over a thousand dollars on a couple 'self-composting' systems, and they an unmitigated mess. Remote composting is the way to go. By the way, I do put my toilet paper into the solid chamber, but once I'm at the remote composting site it is thoroughly mixed in with a pitchfork, and I haven't had problems with animals digging into it.
by plm
19 people found this helpful
Delevery was totally screwed up...
Delevery was totally screwed up
Got it earlier than expected....
Got it earlier than expected.
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.
by Jeni
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
1 person found this helpful
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
no more smelly honey bucket! comfortable, employees like it, simple,...
no more smelly honey bucket! comfortable, employees like it, simple, and a great toilet!
by HappyCustomer907
1 person found this helpful
Very disappointed
The reason I chose this toilet over the Nature's Head was twofold: price was $200 cheaper and you didn't need to slide the top part sideways to empty the bins. This was critical, as I needed the toilet to fit in a very small space and the Nature's Head requires you to have room to slide the top part off. I also liked the look of this one better - sleeker. But that's basically where the pro's end. For being $700, you would think it would have all the basic functionality sorted. First, the urine container does not sit perfectly flush with the trap so pee gets everywhere, especially while traveling (I use this in my Airstream trailer). There is no trap door or lid to keep the urine contained, nor is there a lid to put on when you are taking the bin out to empty it. Urine also ends up spraying into the solids bin, negating many of the positives of a compost toilet to begin with. The actual front spot where you pee is way too shallow and doesn't have enough of a divide between the solids area so you have to sit VERY far forward if you are female (this was clearly designed by men). The solids bin works fine and the compost material is good quality but I did end up beefing up the vent fan - the one that comes with the toilet is rather pitiful. It's also just terribly uncomfortable in general. Overall I'm just really disappointed that for $700 it's basically just a toilet-shaped bucket. I do not recommend this product and if I had the space would definitely switch to the Nature's Head. In the meantime, I plan to add some lines of caulk to the part that separates the liquids and solids to help alleviate the urine getting into the solids.
by Mack
6 people found this helpful
Product met our expectations. A bit difficult to keep...
Product met our expectations. A bit difficult to keep liquids separate from solids.
by HomeDepotCustomer
Showing 1-10 of 29 reviews