Key features

• •The undergravel filter utilizes an air pump (not included) to cycle crystal clear water with less moving parts for easy maintenance. The airline tubing connects accessories like air pumps, stones and filters.
• •As air flows through the undergravel filter's tubes, water passes through gravel and plates allowing both air and water to go through carbon cartridges. Anaerobic bacteria collects on plates.
• •The undergravel filter aerates the tank along with filtration through the air stones and airline tubing. The airline tubing is durable, clear, flexible and resists kinking.
• •The undergravel filter includes 4 filter plates, 4 lift tubes, airline tubes, connectors and carbon cartridges. The airline tubing is 8 ft long.
• •Each undergravel filter plate measures 11.25 in. x 11.25 in. Together they span 45 in. wide. Lift tubes are adjustable from 13.25-16.5 in. at the base.