[OF Ocean Free] Cata-Pure Cartridge for Hydra, Hydra Filtron and Hydra Stream

Purification of water & pH neutral

The Cata-pure Cartridge can last 9 -12 months depending on the amount of fish and is functional in marine environments. Fits all model Hydra Internal Filters, Hydra Filtron & Inline Stream units which take the square cartridge. 

• Prevention of cloudy water
• Minimizes unpleasant water smell
• Helps prevent “ New Tank Syndrome ”
• Purification of water & pH neutral

Model                        Number of Cata-Pure
Hydra Filtron 1000                  2
Hydra Filtron 1500                  3
Hydra Filtron 1800                  4
Hydra 20                                  1
Hydra 30                                  1
Hydra 40                                  2
Hydra 50                                  2