Sun-Mar composting toilets from Oasis Montana

Oasis Montana Inc.
Authorized Dealer for
Sun-Mar composting toilets

Call us!  406-777-4309
Fax: 406-777-4309
Home Page:

Sun-Mar composting toilet retail sales
Centrex 2000 Series Centralized Composting Toilet Systems

Composting Toilets home

Sun-Mar self contained toilets

Sun-Mar "Centrex" centralized composting toilet systems

Sun-Mar options & accessories

Composting toilet

Composting toilet Frequently Asked Questions (FAQs)

in PDF format

very informative (only 3 mg)

Solar water pumping

Renewable energy products

Propane appliances

Energy efficient appliances

Click on any of the pictures through out the site for a larger view in a new window.

The Sun-mar 2000 series centralized composting toilets offer a higher capacity designed to last a whole vacation season without needing to extract any compost.   They are rated for 3-6 full-time occupants or 5-9 weekend or vacation occupants, depending on the individual model selected.  The Centrex 2000 series offers 1 pint flushable models or no- water models as well as electric and non-electric models.  You can download a manual for the Centrex 2000 family of composting toilets here for more details and information. (PDF 546k)

Centrex 2000 - Flush, Electric* Features:
(Shown with optional toilet model 510)

Sun-Mar centrex 2000 centralized composting toilet
  Centrex 2000
  • 1 pint flush style**, electric unit
  • 4 adults - 6 family members continuous usage
  • 7 adults - 9 family members weekend/vacation
  • For applications where continuous 115 volt is available
  • 35 watt turbo fan
  • 370W/115V thermostatically controlled heater
  • 2" vent stack
  • 1" drain (required)
  • 45 1/2"W x 27"D x 28"H (49"w at handle)
  • Toilet can be located up to 20' away using standard 3" waste pipe
  • Requires 1 pint flush toilet model 510 or 511 ($350) and mounting flange ($13).
  • $2045 (plus shipping)

*To convert electric units to non-electric or 12V mode, a conversion kit is available, including a 12V fan.  Price is $175.

Centrex 2000 NE - Flush, Non-electric Features:
(Shown with optional toilet model 510)

2000 NE

  • 1 pint flush style**,  non-electric unit
  • 3 adults - 5 family members continuous usage
  • 6 adults - 8 family members weekend/vacation
  • 4" vent stack
  • 1" drain (required)
  • 45.5"W x 26.5"D x 26.5"H (49"W at handle)
  • Can locate toilet up to 20' away using standard 3" waste pipe
  • Optional 2.4W/12V DC vent fan available
  • Requires 1 pint flush toilet model 510 or 511 ($350) and mounting flange ($13).
  • $1845 (plus shipping)

**If you prefer a dry toilet, the Centrex A/F Waterless Kit is available for use with the Centrex 2000 and 3000 systems.  This includes a 12V fan and hardware.  Price is $155.

NOTE: Sun-Mar products ship from New York State.

For available toilet options click here.


Back to top of page
Downloadable Sun-Mar brochure
(PDF 3mg)

Copyright 2008 - 2017 Oasis Montana Inc