The PT-15000 Primary Tank has 1x compartment. The volume and overall capacity can be increased when installing the units in series or in parallel. Extension sets (ø 600 mm) for the PT-15000 are available as an option.
See under "Accessories": "Extension sets".
All BIOROCK Primary tanks are standard equipped with an effluent filter, and delivered with pre-drilled ventilation holes for adequate aeration.