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Self-Contained Toilets

Sun-Mar’s line of self-contained composting toilets provide the convenience of indoor plumbing, when installing a full septic system is impractical or impossible. Composting toilets are perfect for retrofitting old houses, boats, RV, and off-grid cabins. We sell AC, DC, and non-electric models. The Sun-Mar Mobile is even Coast Guard approved for marine use.

From manufacturer:

Wherever there is a poorly working septic system, a Sun-Mar can take care of the toilet waste; where there is an outhouse we offer the luxury of an indoor facility; and where there is no toilet at all, a Sun-Mar provides the right environmental choice. Sun-Mar units are economical, quick to install and easy to use. 

Because no chemicals and no septic systems are used, fragile environments can be protected. A Sun-Mar composting unit is an environmentally healthy choice for recycling human waste. The Sun-Mar system produces no pollutants, while collecting nutrients. With a Sun-Mar, recycling is made easy!

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  1. SM-COUPLING-2

    Sun-Mar 2.5" Electric Toilet Vent Pipe Coupling

    $3.80
    • 2.5" straight electric toilet vent pipe coupling
    • NOT FOR USE with NON-electric composting toilets
    • CANNOT be substituted with standard PVC pipe
    Learn More
  2. SM-45-2

    Sun-Mar 2" 45° Electric Toilet Vent Pipe Connector

    $1.50
    • 2" 45° electric toilet vent pipe coupling
    • NOT FOR USE with NON-electric composting toilets
    • CANNOT be substituted with standard PVC pipe
    Learn More
  3. SM-90-2

    Sun-Mar 2" 90 degree Electric Toilet Vent Pipe Connector

    $2.40
    • 2" 90° electric toilet vent pipe coupling
    • NOT FOR USE with NON-electric composting toilets
    • CANNOT be substituted with standard PVC pipe
    Learn More
  4. SM-FAN-SPEED

    Sun-Mar Replacement Fan Speed Control

    $80.25
    • Replacement control switch for Sun-Mar ventilating fans
    • Fan is required for proper function of electric composting toilets.
    Learn More

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