2016 Model has shaved corners to ease the cleaning process.
Spare Tank for the Eco Safe System is a 5-1/2 gallon rotomolded plastic tank that fits inside a military surplus rocket box.
The crushproof plastic tank is good for 50 uses and is easily cleaned and reused.

The rotomolded plastic tank is crushproof. It has rounded corners for easy cleaning.
The tank inner dimensions are 16.5″ x 7″ x 11″ Tall. It holds 5 gallons, good for approx. 50 uses and fits inside a 20mm Rocket Box (sold separately)
The tank meets all requirements of the BLM, NPS and USFS for a washable, reusable toilet. It empties easily at an RV dump or in a Scat Machine.

Many boating areas now require you to carry out human waste. Even for those that don’t, the removal of waste products protects the environment. Always check ahead with the area management agency to find out what they require for carry out systems.