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

Call us!  406-777-4309
(877-627-4768 toll-free order line)
Fax: 406-777-0830
e-mail: info@oasismontana.com
Home Page: www.oasismontana.com

Sun-Mar composting toilet retail sales
Sun-Mar Self Contained
Composting Toilets

Composting Toilets home

Sun-Mar self contained toilets

Sun-Mar "Centrex" centralized composting toilet systems

Sun-Mar options & accessories

Composting toilet Frequently Asked Questions (FAQs)


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Sun-Mar self contained composting toilets offer ease of installation with several models to choose from to meet your individual needs and they are all National Sanitation Foundation (NSF) standard 41 approved.

Sun-Mar Excel self contained composting toilet features:

Sun-Mar Excel self contained composting toilet
Sun-Mar Excel
  • High capacity electric model

  • self contained composting

  • NSF standard 41 approved

  • 3 adults or family of 4 continuous rating

  • 6 adults or family of 8 weekend/vacation rating

  • 35 watt turbo fan

  • 260W 115V thermostatically controlled heater

  • 2" vent stack

  • 1/2" emergency drain (hook-up is optional)

  • Removable foot stool

  •  Color: white or bone

  • 22 1/2"W x 33"D x 33 1/4H; 60 lbs.

  • $1645 plus shipping

Sun-Mar Excel NE (non-electric) features:

Sun-Mar Excel NE composting toilet uses no electricity or water
  Excel NE
  • Most popular model

  • Non electric

  • self contained composting

  • NSF standard 41 approved

  • 2 adults or family of 3 continuous rating

  • 5 adults or family of 7 weekend/vacation rating

  • 4" vent stack

  • Optional 12V dc stack fan ($55)

  • 1" drain

  • Removable foot stool

  • Color: white or bone

  • 22 1/2"W x 32 1/2"D x 31 1/2"H; 50 lbs.

  • $1445 plus shipping

An Excel AC/DC model is also available.  This is a dual voltage unit, 12V DC and 115 V AC, which has both 2" and 4" vent stacks and can operate either as a standard electric model or with a 12V, 1.4W DC fan.  This is a good choice for people that will eventually get power to their property or people with un-reliable power sources.  It has the same dimensions and specs as the standard Excel model except it requires a 1" drain, has both 2" and 4" vent stacks and its usage rating is the same as the Excel NE model when not plugged in.  Call for price.

Sun-Mar Compact - medium capacity composting toilet features:


   Sun-Mar
   Compact

  • Self Contained, Composting
  • NSF standard 41 approved
  • Low profile design - only slightly higher then standard toilets make it an ideal choice for elderly or handicapped
  • 1 adult or family of 2 continuous rating
  • 3 adults or family of 4 weekend/vacation rating
  • 2" vent stack
  • 35 watt turbofan
  • 200 watt thermostatically controlled heater
  • 1/2" emergency drain - hookup is optional
  • color: white or bone
  • 21 1/2"W x 33"D x 28 1/2"H; 50 lbs.
  • 115V AC required
  • $1545  plus shipping

Sun-Mar SpaceSaver - medium capacity composting toilet features:


   Sun-Mar
  SpaceSaver

  • Self contained, composting
  • NSF standard 41 approved
  • Small 21 1/2"W x 19 1/2"D footprint
  • 1 adult or family of 2 continuous rating
  • 3 adults or family of 4 weekend/vacation rating
  • 2" vent stack
  • 35 watt turbofan
  • 160 watt thermostatically controlled heater
  • 1" emergency drain - hookup is optional
  • Removable foot stool
  • 19 1/2"W x 23"D x 30"H; 40 lbs.
  • color: white or bone
  • $1545 plus shipping

Mobile marine & RV composting toilet features:
Made for on the Move! mounting brackets, gasketed finishing drawers,  spill proof air intakes, and a drum lock all provide security for even the roughest of waters.


Sun-Mar Mobile
  • Self contained, composting
  • NSF standard 41 approved
  • Small 21 1/2"W x 19 1/2"D footprint
  • 1 adult or family of 2 continuous rating
  • 3 adults or family of 4 weekend/vacation rating
  • 3" vent stack
  • 4 watt 12 volt fan
  • 160 watt thermostatically controlled heater
  • optional 12 volt 120 watt heater
  • 1" drain - required
  • Fold-up foot stool
  • 19 1/2"W x 23"D x 30"H; 45 lbs.
  • Color: bone (only)
  • $1545 plus shipping

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