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    In 1971 Hardy Sundberg of Sun-Mar developed the world’s first self-contained composting toilet.

    For the first time a self-contained toilet could be put in a bathroom and would evaporate liquids and compost solids.

    The next big technical breakthrough came in 1979 when Hardy developed his third generation toilet which incorporated a rotating drum as the composting chamber. This was a three chamber design which used separate chambers for composting, evaporating, and compost finishing. Now the environment for each function could be optimized individually.

    In keeping with the family tradition, a Sundberg still leads Sun-Mar’s research and development effort. Sun-Mar remains the world leader in composting toilets. Each model is designed to fill a specific need, and each is distinguished by innovative design, superior technology, and Sun-Mar’s legendary quality.

    The way a Sun-Mar works is not only unique, it is also elegantly simple. Common sense tells us that the best way to compost is to use a drum. Luckily for Sun-Mar, our many international patents ensure that only Sun-Mar can take full advantage of the benefits a drum offers for mixing and aeration.

    SAI Certification

    All Sun-Mar Composting Toilet Systems are certified against the "AS/NZS 1546.2:2008 On-site domestic wastewater treatment units – Waterless composting toilets" standards.

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    Sun-Mar™ | Compact 240

    The Compact is an elegant low profile unit with the looks to complement any bathroom. Sun-Mar engineers designed this low profile toilet by developing and patenting a new variable diameter Bio-drum which is small at the front and large at the rear. To maintain the uninterrupted lines of the Compact, a patented Bio-drum handle recesses into the body of the unit to mix and aerate the compost.
    $3,000.31 excl tax $2,826.40 excl tax excluding shipping

    Sun-Mar™ | Excel NE (Non Electric)

    If you’re in a situation where you need to be off-the-grid and completely self-sufficient, then this is the Sun-Mar model you want to look at. The Excel NE model was first designed in 1981 and still today it remains the standard setting unit for completely non-electric composting toilets.
    $3,309.09 excl tax excluding shipping

    Sun-Mar™ | Mobile™

    The Sun-Mar Mobile™ waterless toilet has been specifically designed to continue operating under the normal stresses onboard a mobile home or boat. The system has sufficient processing capacity to allow several weeks of coastal water or mobile home use without recourse to pump out facilities. 12-week indent product**
    $3,358.91 excl tax excluding shipping

    Sun-Mar™ | Centrex 2000 NE (Non Electric) - A/F (Air Flow)

    SMC-2000 NE A/F
    The Centrex 2000 A/F (Air Flow) NE is a low voltage, waterless “off-grid” alternative to the straight Centrex 2000 model. The system is designed for use in conjunction with a waterless toilet pedestal and processes waste under the bathroom floor, the non-electric system is slightly smaller than its electric counterpart.
    $3,260.87 excl tax excluding shipping

    Sun-Mar™ | Centrex 2000 NE (Non Electric) - M/F (Micro Flush)

    SMC-2000 NE MFP
    Perfect for medium to heavy seasonal or light residential use, the Centrex 2000 NE allows for both a longer composting cycle and larger waste volumes.
    $4,104.35 excl tax excluding shipping

    Sun-Mar™ | Centrex 2000 - A/F (AirFlow) 240

    SMC-2000 A/F 240
    The Sun-Mar Centrex system range is a split system, also known as a under floor model. This mean that the holding chamber is separate from the actual toilet pedestal itself. The major advantages of these systems is that they allow for greater holding capacity and therefore tend to be lower maintenance. If you have below floor space for installation, then this is the range for you.
    $3,608.70 excl tax excluding shipping

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