Sun-Mar Centrex 1000 NE Composting Toilet Non Electric


Last updated on June 6, 2024 3:27 pm




The Centrex 1000 NE was recently re-engineered for better compost flow to include input doors on the left and an output door on the right. This output door is only open when the drum is rotated backwards to extract compost.




Other changes include a larger finishing drawer, easier access for maintenance, and a redesigned access port which is secured by a catch.



In light to medium seasonal use the Centrex 1000 is typically able to hold compost for the full season, and compost needs extraction only in the Spring.



The Centrex 1000 NE does not normally need a 12 Volt fan for the 4″ stack, but a 1.4 Watt fan is available if required (where a bend needs to be installed in the vent stack, a 12 Volt fan is required).



All 1000 series units are supplied with a 1″ drain hose which should be connected to the 1″ drain at the bottom left of the unit. Click here for more information about handling excess liquid.



The 1000 series is designed only for use with 1 pint flush toilets (purchased separately).


Listed capacities refer to the amount of people, on average, using the unit per day. Do not pick a unit that is below your capacity.


Residential/Continuous (Adults/Families) N/A
Seasonal/Vacation (Adults/Families) 4 adults or families of 6

Electricals must be connected while the unit is in AC use for proper operation


Maximum Amps (With Heater On) N/A
Fan Watts (Required or Optional Hookup) 1.4 optional
Heater Watts (When Thermostat switches it on) N/A
Average Power Use in Watts (Heater on 1/2 time) N/A

Vent & Drains


Vent Pipe 4″ PVC Thinwall
1″ Drains (Required or Optional Hookup) Required

Weights (Lbs.) & Dimensions


Unit Height & Depth 27 1/2″ by 32 1/2″
Unit Width & Width Required to Turn 22 1/2″ by 24 1/2″
Product Weight/Shipping Weight 45-95
Shipping Carton Dimensions (W by L by H) 27 by 35 by 36
Depth Required to Remove Drawer 46 1/4″
Height to Bottom – Top of Waste Inlet Assembly 25 1/2 – 28 3/4″
Vent Inlet Center Distance From Rear – Left Side 17″ – 4 1/2″
Waste Inlet Diameter (including flange) 3″ DMV
Height to Center of Top of Vent Outlet Assembly 30 1/2″ (top)