Canister filter unit only. It can be used as a pre-filtration unit, or once connected to a filter system or a pump, it can function as a full filtration system.

12mm:
Pump recommended flow rate: 2000 L/H (528 G/H).
Filter Inflow/outflow diameter: 12mm (1/2").

16mm:

Pump recommended flow rate: 2000 L/H (528 G/H).
Filter Inflow/outflow diameter: 16

Key Features:

Made with strong materials to ensure durability.
Equipped with a tap connector, easy to maintain and adjust water flow.
Can be used with a filter sponge, filter media, biological media, and/or adsorption media.
While any clogging builds up, the pressure will increase and push out the wool to prevent the flow rate from being decreased or blocked.
Sharp angled space that can't be filled up by the bio media which creates space for water to easily flow through.

ISTA Smart Filter