Microbial Reduction 2.2 GPM Hi-Flow Replacement Cartridge for AQ-500 Series.
The AQUASPACE 9 ¾" Hi-Flow Ceramic Cartridge (AR-900) is for the AQUARIUS BIG WHITE Model No.: AQ-525 and AQ-550
Capacity: 50 Cleanings or 2 years, whichever occurs first.
Flow Rate: 2.2 GPM max
Efficiency: AQUASPACE Hi-Flow Ceramic Cartridge (AR-900) used for the reduction of Parasites, Cysts and Bacteria.