Extreme T Pack includes the following 10" filters:

1) 10 micron sediment filter
1) 1 micron Coconut Carbon Block
1) one Refillable Activated Catalytic Carbon Filter (5 micron)
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.

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