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    SKU: SMC-3000 MFP
    Centrex 3000 M/F 240 — the largest electric micro-flush underfloor split system in the range, suited to higher-volume installations that want a flush-style interface with large composting capacity.

    Choose the Product options below

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    All Micro Flush Sun-Mar systems are down rated user capacity by one user.

    With the use of Micro Flush Systems a large soakaway is needed (2000mmL x 1000mmW x 800mmD)

    Sun-Mar Microflush Pedestal Models 510 & 511 

    Model 510 is a standard height toilet model with regular sized seats allowing for ease of use.

    Model 511 is a low profile model allowing for raised floor setups when fall on waste pipe is a problem and is a great option for children to keep their feet on the ground.

    The Sun-Mar centrex systems can take upto 4 Micro Flush Pedestals

    Add a wind-driven vent to create redundancy. The wind-driven vent will assist the fan under heavy wind conditions, keeping the system operational in the event of a power outage or fan failure.
    2 colours: white or black.

    Select this reducing collar to adapt the vent from 150mm to 100mm.

    Select this reducing collar adaptor to reduce the pipe further, from 100mm to 50mm. Compatible with this system.

    Note: to reduce to 50mm, the 100mm adaptor above is also required - leave selected.

    Note: systems with 50mm piping will require a mounting stay (not supplied).

    Select this reducing collar to adapt the vent from 150mm to 100mm.

    Select this reducing collar adaptor to reduce the pipe further, from 100mm to 50mm. Compatible with this system.
    Note: to reduce to 50mm, the 100mm adaptor above is also required - leave selected.
    Note: systems with 50mm piping will require a mounting stay (not supplied).

    Extend your soft connection leachate drainpipe to reach your hard connection leachate drainpipe or soak-pit/trench.

    Soft connections allow for flexible placement of the composting tank in relation to a hard connection or drain.

    The system is packed with 1 meter of 25mm leachate drainpipe as a standard.

    Extend your leachate drain via in-ground hard connection to reach your soak-pit/trench (soak-away).

    Most soak-aways should be installed 3 meters away from the foundations of the structure but this remains circumstantial to the site.

    Run your leachate drain into a soak pit (vertical soak-away) or into a trench (horizontal soak-away).

    Availability: Availability - on backorder and will be dispatched once in stock (Special order – ready in approx. 3–4 months (non-stock item sourced specially from our supplier)).
    $7,914.92 excl GST
    excluding shipping
    Estimated delivery time: Approx. 1–2 weeks (NZ-wide)
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    Availability: Special Order — Call to Enquire

    Sun-Mar™ | Centrex 3000 - M/F (Micro Flush) 240

    The Centrex 3000 M/F 240 is the electric micro flush version of the largest Centrex range. It is designed for use with a micro flush pedestal and is positioned for medium to heavy seasonal use and medium residential use where the greatest compost volume is needed.

    Featuring Sun-Mar’s™ patented Bio-drum™ technology, the Centrex is a true composting system that processes the compost in two stages within the unit itself. The Centrex 3000 composting toilet works on a continuous flow design to maximize its capacity and improve the composting process.

    Capacity and Best Fit

    • Best suited to: medium to heavy seasonal use and medium residential use
    • Application type: underfloor micro flush installations where larger compost volume and reliable 240V power are available
    • Pedestal type: micro flush pedestal

    Capacity note: Listed capacities refer to the number of people, on average, using the unit per day. Do not pick a unit that is below your real use case.

    How this system works

    The Centrex 3000 composting toilet works on a continuous flow design to maximize capacity and improve the composting process. The rotation of the drum forces compost along the length of the Centrex 3000 and into an auto-drop mechanism, which lets the compost fall into the collection housing.

    All Centrex 3000 electric units feature a 370-watt 120-volt thermostatically controlled heater in a sealed compartment beneath the unit, coupled with the standard Sun-Mar 30-watt turbo fan and 2" vent stack. This heater assists in the evaporation of liquids, reducing the amount of effluent from the unit. The fan also removes fresh odours from the unit, ensuring odour-free operation.

    NSF and CSA Performance Certification

    Sun-Mar™ composting toilet systems are CSA certified for electrical features under CSA file number LR55925.

    NSF/ANSI 41 Standard — Non-Liquid Saturated Treatment Systems

    This system is certified for liquid containment, odours, and solid end products.

    Sun-Mar is certified by NSF under a six-month independent test protocol requiring odour-free operation at maximum capacity and the production of clean, safe compost.

    SAI Global Certification

    Certification

    Australian & New Zealand Standard 1546

    SAI Global certified
    Licence Number: SMKH25591

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

     

    NSF: What you need to know about composting toilets

    NSF Fact Kit

    Note: the system does not include a starter pack. Please purchase bulking agent, microbes, and enzymatic cleaner separately.

    WCTNZ® is the exclusive authorised distributor of Sun-Mar™ composting toilets 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 composting 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 »