[Pack of 4] - Lees Disposable Carbon Cartridges 2 Pack

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 sparkeling clean aquarium