Product Price Flow Rate (gph (gallons per hour)) Filter Media Volume (cups) Maximum Tank Size (gallons) Energy Consumption (watts) Noise Level (dB (decibels)) Filter Media Type
Eheim Eheim Pro 4+ 600 Canister Filter (2078)
US
£253.64 600 l/h 600 litres Mechanical, biological, chemical (comes with EHEIM original media)

The EHEIM Pro 4+ 600 is a high-capacity external canister filter offering adjustable high flow, low energy operation, quiet ceramic-axle pump, self-priming and an Xtender flow-management button to extend cleaning intervals. It has a square canister for large filter volume, individual filter baskets with easy-clean grids, and is supplied with original EHEIM media and installation accessories.

★ Ideal for

Ideal for large tanks up to 600 litres because it delivers 600 l/h flow, large internal filter volume and adjustable output suited to heavy bio-loads.

Fluval Fluval FX2 High Performance Canister Filter
US
£201.44 475 US GPH / 1800 LPH 1 US Gal / 3.9 L 175 US Gal / 750 L 27W mechanical, chemical, biological (Bio-Foam, Bio-Foam+, BioMax, Carbon Pad)

The Fluval FX2 is a compact, high-capacity canister filter delivering 475 US GPH (1800 LPH) with multi-stage mechanical, chemical and biological media and a 1 US Gal (3.9 L) media capacity. It features Smart Pump technology for self-priming, energy-efficient operation and is suited for freshwater and saltwater aquariums up to 175 US Gal (750 L).

★ Ideal for

Ideal for large-tank setups because its 475 US GPH flow rate and 1 US Gal media capacity provide high circulation and extensive media space for heavy bio-loads.

OASE OASE Biomaster Thermo 350 Canister Filter
US
£223.82 300 GPH 1.5 Gallons 90 Gallons 16 Watts Hel-X biomedia, filter foams, activated carbon

The BioMaster Thermo 350 is an external canister filter with an integrated heater, four-stage filtration (pre-filtration, mechanical, chemical, biological), adjustable flow and EasyClean prefilter module. It includes Hel-X biomedia and multiple foam options, suits both freshwater and marine setups, and is designed for quiet, energy-efficient operation. Ideal for under-cabinet installation and comes with fittings and tubing.

★ Ideal for

Suitable for high-capacity filtration of large tanks because it delivers 300 GPH flow, 1.5 gallons of media volume, and is rated for aquariums up to 90 gallons, providing strong throughput and substantial media capacity.