• Ammonia-X, Ammonia Removing Undergravel Filter Cartridges is a quick easy disposable cartridge which acts as a lift insurance for your fish.
• Ammonia Removing Undergravel Filter Cartridges are made with top quality zeolites which work to eliminate the top fish killer “ammonia.”
• Undergravel Filter Cartridges solve the problem of overfeeding, over-crowding and foul water conditions.
• Filter Cartridges fit all Undergravel filters.
• 2 Pack