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          SKU: SM - GTG
          Sun-Mar™ GTG is the next best thing! The GTG is Sun-Mar’s smallest and most economical toilet ever.

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          Availability: 20 in stock
          $1,545.22 excl GST
          excluding shipping
          Dispatch; Transport Time Frames: 1 Week Estimated Time of Freight (Nationwide-Transport)
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          Sun-Mar™ | Resources

          Sun-Mar™ GTG / THE GOOD-TO-GO TOILET

          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 unrivaled 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.

           Elongated seat for extra comfort  Unlimited capacity Easy to use Portable Vented for odour free operation

          Perfect for Homes, Tiny Homes, Cottages and Cabins, Boats, Farms, Warehouses, Garages, Barns, Stables, Mines, RVs, Aircraft Hangars, Pools - the list is endless and the GTG can go anywhere it’s not possible or cost-effective to install a conventional toilet.

          "These systems are set up in minutes and operate with two chambers that separate solid and liquid waste"

          "For use where a conventional toilet is not an option or not cost-effective!"



          • Goes anywhere so you can too
          • Can be installed in minutes
          • Economical
          • Composting toilet
          • Vented for odour free operation
          • Ultra-compact size is perfect for use in small spaces


          • Two chambers that separate solid and liquid waste
          • Elongated seat for extra comfort
          • Ventilation system including a 12-volt 5-watt fan in housing and transformer (240ac to 12vdc power supply)
          • 1 x 125ml Nature Flush Enzymes & spray bottle
          • 1 x Bag of Hemp fibre (cover material)
          • Easy to follow EASY Installation and Maintenance Manual

          Consumables Nature Quick and Organic Mix may not be included in the packages, please buy consumables from the available list online

          Nature Quick is currently not available in NZ



          Height: 503 mm Width: 400 mm Depth: 609 mm

          Weight: 11.3 kg Seat Height: 457 mm


          The rule for RV self-containment is that a liquid volume of one litre per day per person for a minimum of three days is required. The GTG Bottle offers eight litres of self-containment totaling 4 days for 2 people. Additional bottles offer an extended capacity if the full bottle is kept on board in a suable vented locker until a dump station is available to empty them. Please speak to your SC (self-containment) officer for a final say on the matter. 

          For details about self-containment Please refer to this link NZS 5465:2001 Self-containment of motor caravans and caravans for a copy of the standard.


          All Product short copy and long copy is the property of Waterless Composting Toilets NZ Limited. Copyright © 2023 WCTNZ® | Waterless Composting Toilets NZ. All rights reserved.

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