Choose a JBL external filter by aquarium size and filter capacity
JBL external filters in the CristalProfi range differ in flow rate, canister volume, media baskets, hose size and recommended aquarium volume. Select the model according to aquarium size, stocking, required circulation and the space available in the cabinet.
Manufacturer volume recommendations provide a starting point, but actual flow falls when hoses, fittings and filter media add resistance. Compare dimensions, stated output, power consumption, priming method and the included hoses, valves and media.
Product pages identify compatible replacement media, seals, impellers and accessories. Measure the cabinet and hose route before ordering and allow enough access for regular maintenance.