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Sun-Mar™ | GTG / GOOD-TO-GO

Name: Sun-Mar™ | GTG / GOOD-TO-GO
Brand: Sun-Mar™
SKU: SM - GTG
Availability: InStock
Rating: 5.0 (1 reviews)

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Brand: Sun-Mar™

SKU: SM - GTG

GTG / Good-To-Go — ultra-compact, self-contained separating toilet for RVs, tiny homes, boats, and other tight spaces where simple setup and self-containment matter.

Choose the Product options below

Get an additional Solids Chamber or Urinal Bottles for long term berthing (see below for more details)

GTG | Urinal Bottle [+$195.65 per item]
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For effective maintenance and operation of the GTG system add consumables

Sun-Mar GTG Care Package [+$41.74 per item]
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Sun-Mar GTG WET Mix all ready to go! (20 litres) [+$30.43 per item]
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Availability: In stock

$1,545.22 excl GST

excluding shipping

Estimated delivery time: Approx. 1 week (NZ-wide)

Qty:

i h

Products

Product Files

Sun-Mar™ | Media

Sun-Mar™ | GTG Brochure

Sun-Mar™ | Resources

Sun-Mar™ | GTG Manual

Sun-Mar™ | Compliance Documentation

GTG NZ Lifestyle Camping Association RV Self Containment Approval

Sun-Mar™ GTG "Good To Go"

Sleek and elegant, the GTG is Sun-Mar’s™ smallest and most economical toilet ever. With modern styling, fast setup, and a compact footprint, it is designed for places where a conventional toilet is either not possible or not cost-effective.

Green Sticker Compliant (Plumbers, Gasfitters, and Drainlayers (Self-Contained Vehicles) Regulations 2023)

Best for: RVs, boats, tiny homes, cottages, cabins, farms, garages, workshops, barns, and many other low-infrastructure applications.

Key Features

Compact size, ideal for small spaces
Toilet base is fixed to the floor
Full containment housing stores waste securely
Quick and easy access to chambers
Vented for odour-free operation
Suitable for wet areas
Expandable liquid capacity with additional GTG Urine Bottles

Package Includes

Two chambers that separate solid and liquid waste
Elongated seat for extra comfort
Ventilation system including a 12V 5W fan in housing and transformer (240AC to 12VDC power supply)
1 x 125ml Nature Flush Enzymes & spray bottle
Easy installation and maintenance manual

Dimensions

Height: 503 mm
Width: 400 mm
Depth: 609 mm
Weight: 11.3 kg
Seat height: 457 mm
GTG Urine Bottle capacity: 8L

RV self-containment note: The GTG Urine Bottle offers 8L liquid capacity, providing 4 days self-containment for 2 people. Additional bottles can be used to extend capacity, provided full bottles are stored safely on board until a dump station is available.

For details, see the Self-contained Motor Vehicles Legislation Act 2023 and the Plumbers, Gasfitters, and Drainlayers (Self-Contained Vehicles) Regulations 2023.

Consumables are not included in the package. Please purchase bulking agent (coco peat) and liners from the Sun-Mar consumables list.

Nature Quick is currently not available in NZ.

WCTNZ® is the exclusive authorised distributor of Sun-Mar™ waterless toilet solutions in New Zealand. All Sun-Mar™ products available through WCTNZ® are guaranteed authentic, include official manufacturer warranties, and come with comprehensive local customer support—making us New Zealand’s trusted source for sustainable, waterless toilet solutions.

Before you choose, think:

1. Your place — tiny home, bach, family home, RV, or public site

2. Your building — whether it suits a self-contained or split composting toilet system

3. Your needs — user numbers, maintenance preferences, and how off-grid you want to be

To narrow it down properly, start with the Composting Toilet Guide.

Open the WCTNZ® Selector Guide »

Product tags

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