The Sun Mar Excel was the first ever self-contained composting toilet to be certified by the National Sanitation Foundation (NSF). So, when you purchase an Excel, you are literally purchasing the unit that sets the standard for self contained composting toilets. It is a high capacity Bio-drum that is very simple to operate.
To simulate residential use the Excel was tested by the National Sanitation Foundation (NSF) at maximum capacity for 6 continuous months, during which the Excel produced no odour and produced a clean, safe compost. Only Sun-Mar self-contained units are listed for residential and cottage use by NSF, whose Standard #41 is the toughest composting performance standard in the world.
The 2″ vent is attached at the top back of the Excel and can be installed invisibly by running it through the wall and up the outside wall. For comfort the Excel has a sturdy detachable footrest which can be removed to pull out the finishing drawer.
In normal use the Excel can normally evaporate all liquids, however a ½” emergency drain is fitted at the rear and this should be connected if the unit is to be used residentially or heavily, or if prolonged power outages are possible.
Product Features
Available Color
Composting Capacity
Capacity Listed capacities refer to the amount of people, on average, usingthe unit per day. Do not pick a unit that is below your capacity.
Electricals Electricals must be connected while the unit is in AC use forproper operation
Vent& Drains
Weights(Lbs.) & Dimensions
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