- Pre-filter contains refillable carbon cartridge and washable sponge.
- Snaps on the bottom of the CA1800, CA2200, CA3000 and CA4000 pump.
- Can be used for ponds, aquariums.
- Adds 7 inches to the length of the pump.
- Two carbon chambers with high grade carbon.
- Comes with adapter to fit on pump and two refillable cartridges.
Carbon Cartridge Prefilter for Catalina Aquarium Aqua Pumps CA1800 To CA4000