T Pack includes the following 10" filters:

1) 10 micron sediment filter
1) 5 micron Coconut Carbon Black
1) one micron Coconut Carbon Black... (See Extreme T-Pack Below)
1) Full size vertical color changing DI Cartridge

For use on all Reefkeepers, where you have 4 cartridges across the bottom.
Fits all standard Reefkeeper units See example Typhoon
Dimension: Fits all all standard 10" housing sizes . Extreme T Pack. If you want additional protection against chloramines then you should upgrade the normal T-Pack to this "Extreme" T-Pack which has a Refillable Catalytic Carbon Filter in place of the 1 micron coconut carbon black filter. This is the normal replacement pack for an Extreme Typhoon III unit. This pack costs $46.95 and is located by clicking here: Extreme TPack.

Package includes: 1) 10 micron sediment filter 1) 5 micron Coconut Carbon Black 1) one micron Coconut Carbon Black 1) Full size vertical color changing DI Cartridge
For use on all 4 housing 10" filter Reefkeepers.