Composting Toilet FAQ's Toilet Accessories Toilet Specifications Rough-In Diagrams

We carry 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.

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Browse By:  All Composting Toilets and Systems Self-Contained Composting Toilets Flush Central Composting Toilet Systems Dry Central Composting Toilet Systems

• Self-Contained Composting Toilets

• Central Composting Systems - Flush Toilets

• Central Composting Systems - Dry Toilets

• Water Free
• Quick & Easy to Install
• Easy to Winterize
• Economical one piece systems
• Evaporate All Liquids (electrical units)
• Easy to Clean

The Excel was the first ever self-contained composting toilet to be certified by the National Sanitation Foundation (NSF). The Excel has enough capacity that it can be used just about anywhere; in residences, cottages and even in light commercial applications. 1/2" emergency drain.

• High Capacity
• Composting Capacity: 3-4 Residential, 6-8 Weekend/Vacation
• High Quality Fan
• 2" Vent
• Detachable Footrest.

$1,625

The success of the Excel design meant that a three chamber unit could be specifically designed for those with NO continuous 110 volt supply. The Excel Non-Electric sets the standard for living off the grid. 1/2" emergency drain.

• Regular Capacity
• Composting Capacity: 2-3 residential, 5-7 weekend & vacation.
• 4" Vent. No Fan or Heater.
• Optional 12 Volt Fan (can be powered by a solar panel)

$1,425

$1,425

The Compact is an elegant low profile unit with the looks to complement any bathroom. The Compact differs from the Excel in that all three chambers are smaller, which makes the Compact ideally suited to light residential or light to medium cottage use. 1/2" emergency drain.

• Medium Capacity
• Composting Capacity: 1 residential, 3-4 weekend & vacation
• High Quality Fan
• 2" Vent

$1,525

The Spacesaver is a standard three chamber unit designed specifically for situations where space is extremely limited. With a width of only 19" and depth of 22", even a closet or small corner can now be turned into a bathroom! Composting capacity is similar to that of the Compact. Evaporation is limited by the smaller heater and evaporating surface, safety drains should be connected.

• Medium Capacity
• Composting Capacity: 1 residential, 3-4 weekend & vacation
• High Quality Fan
• 3" Vent

$1,525

The Sun-Mar Mobile uses the same three-chamber system, with some adaptations for "marinizing" the unit. Gasketed finishing drawer, Drum locker ensures that the composting drum is held upright under all sea or road conditions. Fold-away foot rest, Strong mounting brackets, 4.0 Watt 12 Volt fan is installed in a fan box within the vent stack. This fan, (which is on its own circuit) is designed to operate continuously while the unit is in use.

• Mobile Unit for RV's and Boats
• Composting Capacity: 1 residential, 3-4 weekend & vacation
• No Pump-Outs, No Chemical Toilets!

$1,525

For those that want a traditional type of toilet in the bathroom, Centrex family low flush systems are ideal. Three differently sized units, the Centrex 1000 (batch unit), Centrex 2000 (batch unit) and Centrex 3000 (continuous unit) are available for use with 1 pint flush toilets. The selection should be based on both whether the unit is used seasonally or residentially, and the number of people that will be using the unit. The 'Sealand Toilet' in the bathroom is connected by a standard 3" plumbing pipe to the composting unit which is below the toilet and normally within 15-20 feet.

View Electric Model
View Non-Electric Model

• Regular Capacity
• Composting Capacity:
  Electric: 5-7 weekend & vacation use only
  Non-Electric: 4-6 weekend & vacation use only
• Removable Evaporating Tray
• 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.
• 1" Drain Hose
• 4" Vent (Non-Electric)

$1,625

$1,425

View Electric Model
View Non-Electric Model

• High Capacity
• Composting Capacity:
  Electric: 4-6 residental, 7-9 weekend/vacation
  Non-Electric: 3-5 residential, 6-8 weekend/vacation
• Seasonal use compost removing annually each spring.
• Residential use some compost emptied into the finishing drawer once every few months.
• 1" Drain Hose
• 4" Vent (Non-Electric)

$1,825

$1,625

View Electric Model
View Non-Electric Model

• Extra-High Capacity
• Composting Capacity:
  Electric: 6-8 residental, 9-11 weekend/vacation
  Non-Electric: 5-7 residential, 8-10 weekend/vacation
• Continuous flow design for very heavy cottage or medium residentail use.
• 30 watt Turbo Fan and 2" Vent
• 1" Drain Hose
• 4" Vent (Non-Electric)

$2,025

$1,825

• For Centrex 1000, 2000, and 3000 series central composting toilet systems.
• More than one sealand can be installed with these units if necessary.
• Minimizing water usage by using about one pint per flush.
• Other Uses: holding tanks, overloaded septic systems, and in RV's.
• The '510 Plus' model has the size and appearance of a "regular" toilet.

$305.00

$305.00

Sun-Mar water free systems use the handsome Sun-Mar Dry Toilet (in either white or bone), connected to the central composting unit by means of a 10" diameter pipe section. These units are ideal for those who do not have water, but still want the composting action to take place outside of the bathroom area. Odor free operation is maintained by a fan which pulls air down through the toilet seat and up the vent stack. Dry central composting toilet systems can only be used where the toilet can be placed directly over the composting unit.

View Electric Model
View Non-Electric Model

• High Capacity
• Composting Capacity:
  Electric: 4-6 residental, 6-8 weekend/vacation
  Non-Electric: 3-5 residential, 5-7 weekend/vacation
• Larger composting drum allows a longer composting cycle, and larger waste volumes.
• Used seasonally by up to 9 adults, compost will normally only need to be removed annually at the beginning of the cottage season.
• Used residentialy, the drum would have to be rotated backwards to empty some compost into the finishing drawer once every few months.
• 1" drain hose (recommended for residentail or heavy use)
• 4" vent stack (Non-Electric)

$1,925

$1,725

View Electric Model
View Non-Electric Model

• Extra-High Capacity
• Composting Capacity:
  Electric: 5-7 residental, 8-10 weekend/vacation
  Non-Electric: residential, weekend/vacation
• Continuous compost flow design for very heavy cottage or medium residential use.
• Used seasonally by up to 10 adults, compost will normally only need to be removed annually at the beginning of the following season.
• 1" drain hose (recommended for residentail or heavy use)
• 4" vent stack (Non-Electric)

$2,125

$1,925

• For use with the waterfree Centrex 2000 AF, and 3000 AF composting systems.
• 15" Height and a "regular sized" toilet seat.
• Vent system on all AF units prevents odors in the bathroom.
• Includes a bowl liner that fits beneath the seat and can be removed for cleaning as required.

$290.00