Aquafx CO2 Scrubber Kit- Includes mediaFeatures Media changes from White to Pink when exhausted. 1 Lb of media Treats 40 75 gallons Aluminum Bracket Heavy Duty Items Included 1x Clear Canister 1x Empty Refillable High Flow Filter Cartridge 2x Elbows for the Tubing and Clear Canister 6x Feet of 3 8" Clear Tubing to connect your skimmer to the CO2 Scrubber 1x Soda Lime CO2 Scrubbing Media (Included in sealed bag) 1x Filter Wrench for ease of use