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    New Zealand's leader in waterless composting toilets

    Discover our huge range of domestic and commercial, rural and urban sustainable toilet solutions


    COVID-19 Notice to customers


    Yes, we are open to online sales and Support. No site visitors are allowed.

    New Hours; 9-5 Monday to Tuesday

    Note that our business deliveries are part of an essential service as on-site wastewater treatment solutions (sanitation)



    WCTNZ is New Zealand’s leading supplier of environmental wastewater solutions.


    We’re proud to stock the country’s largest range of fully-certified waterless composting toilets to suit any application and any budget. If you’re looking for a sustainable, effective and odourless solution for your number ones and twos, we can help you! Whether you’re building a tiny house, a high-rise, or anything in between, we’ve got an eco-toilet that’s right for you.

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    We've got waterless composting toilets for every space

    On the grid or off. From the city to the country. From tiny houses to office buildings. Tell us a bit about your place, and we’ll help you select a toilet system that’s just right.

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