Lees Cartridge Carbon Dispenser is an easy-to-install cartridge filled with high-grade, activated carbon. Disposable Carbon Cartridges keep tanks sparkling clean! Lees Cartridge Carbon Dispensers are designed to fit our Economy, Original or Premium Under Gravel Filters.
- Fits Lees undergravel filters
- Replace cartridges every 2-3 weeks
- Carbon cartridges help keep a sparkling clean aquarium