Oasis Montana

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Oasis Montana Is Your One Stop For Energy Efficient & Eco Friendly Appliances To Complement Your Renewable Energy System


The Choice is Simple

We have a Sun-Mar Composting Toilet system for every situation.  Pools, cabanas, boats, cottages, camps, and yes, even homes!  

We also have a Sun-Mar for every electrical situation - electric, non electric, or solar.  Please pick the category at right that best suits the toilet you are looking for - and if you don't know try our easy question process or model selector to be matched up with the composting toilet unique to your situation!

Odor Free

As well as ensuring an aerobic breakdown in the Bio-drum, Sun-Mar ensures an odor free environment by engineering the air flow within the unit to maintain a partial vacuum at all times. Air is being drawn in either by a fan (or on non-electric units by the vent chimney) over the evaporating chamber and up the vent stack. Not only does this evaporate excess liquid, but by continuously pulling air in we ensure no smell escapes from the unit. 

SUN-MAR has a composting toilet for every need. 
- Electric or non-electric
- Waterless or 1 pint flush
- Small, medium, or large capacity units

SUN-MAR's unique and superior composting toilet designs are covered by international patents and feature 3 separate independent chambers with Bio-drum for composting, finishing and evaporation.

What you should know before you buy a Composting Toilet - Importance of NSF Certification

Only SUN-MAR's composting toilets are certified by the National Sanitation Foundation for residential and cottage use - Official NSF Listing

Link to old SUN-MAR appliance page.

Call for availability

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WHAT TRUCK FREIGHT ENTAILS:   The best rate for truck freight shipping is to have you pick it up at the local freight terminal or commercial drop point.  A residential delivery is usually $50 to $60 more than a business delivery, and, a lift gate (which drops the goods off at ground level), is another $80 to $100 in additional fees.  Inside delivery is an additional cost on top of that.

Know someone with a truck? Can you have a dolly or hand cart on hand?  If you can mobilize a couple of strong bodies, you might be able to save $50 to as much as $120 or so on your freight costs.

Call for your freight on any of our truck freight items