








Sun-Mar Excel Composting Toilet (SC)
- Regular price
- $1,825.00
- Sale price
- $1,825.00
- Regular price
-
$2,399.00 - Unit price
- / per
The Excel is Sun-Mar best selling unit in North America, and for good reason. It is a high capacity Bio-drum toilet that is simple to operate, features proven technology and is extremely reliable. The Excel was the first ever self-contained toilet to be certified by the National Sanitation Foundation (NSF). So, when you purchase an Excel, you are purchasing a composting toilet that sets the standard.
Listed capacities refer to the amount of people, on average, using the unit per day.
Residential/Continuous' |
3 adults or families of 5 |
Seasonal/Vacation' |
6 adults or families of 8 |
Electricity must be connected while the unit is in use for proper operation.
Maximum Amps (With Heater On) | 2.4 |
Fan Watts | 35 |
Heater Watts (When Thermostat switches it on) | 250 |
Average Power Use in Watts (Heater on 1/2 time) | 150 |
Like conventional toilets, all Sun-Mar products must be properly vented per the guidelines present in the unit's owner's manual.
Vent Pipe | 2 Thin-wall PVC |
Drains |
1 OD Optional for seasonal/vacation use |
Measurements are stated in pounds (lbs) and inches.
Height: | 33 1/4 |
Width: | 22 1/2 |
Depth: | 33 |
Weight: | 60 lbs |
Shipping weight | 85 lbs |
Shipping dimensions | 28 by 36 by 36 |



Our Bestselling Gear
What Our Customers Are Saying
"As a mom, nothing matters more than protecting my family. Entropy Survival’s emergency kits gave me peace of mind knowing we’re prepared for anything."

"I bought the pet emergency kit for my dog and was amazed at the quality! Everything is thoughtfully packed to keep pets safe and healthy during any disaster."

"The Safe Trail Kit is a must-have for hikers! Lightweight, affordable, and packed with high-quality essentials — it kept me safe and prepared deep into the backcountry."

"Entropy Survival has the best selection of quality survival gear I’ve found. Whether prepping for off-grid living or emergencies, their depth and reliability are second to none."

GOT QUESTIONS? WE'VE GOT ANSWERS!
Yes, you can track your order via our interactive chat or via email. To see your order status, please provide your order details.
We currently only ship to confirmed addresses in the United States. We offer free shipping on all orders $99 or more.
If you purchased an item through our website and need to return it, you can request a refund within 30 days of the shipping date. To qualify for a full refund, the product must be returned in "new" condition – unused, unaltered, unworn, and containing all original components (e.g., all parts of The Safe House Kit).
HAVE QUESTIONS OR NEED HELP CHOOSING THE RIGHT SURVIVAL GEAR? GET IN TOUCH WITH US TODAY – WE'RE HERE TO HELP!
