The sewage tank has the largest capacity among engineering mobile toilets. It can hold more than 500 liters of sewage, twice as much as an ordinary toilet. Available in squat style only.

| Width (m): | 1.55 |
| Length (m): | 1.55 |
| Height (m): | 2.21 |
| Weight (kg): | 151 |
| Tank Capacity (liters): | 253 |
| Average Usage: | Event – 1 toilet maximum 80 persons (daily service) |
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