Clear-N-Clear - Undergravel Filter 30 Gallons The canvas fabric is waterproof

The canvas fabric is waterproof

inviting mat is equipped with a high-tech heat-reflective insert that absorbs and reradiates body heat

- Designed to extend your reach it reduces the need to bend over to pick up muddy

allowing easy filtration and providing essential water quality improvement

Clear-N-Clear - Undergravel Filter 30 Gallons The canvas fabric is waterproofThe Penn Plax Penn Plax Undergravel Filter combines the function of a traditional filter while offering maximum viewing since its hidden out of sight. Designed for 40 to 50 gallon fish tanks, this undergravel filter uses mechanical, chemical, and biological filtration to filter harmful pollutants from your aquarium. Undergravel filters create the most natural bacteria bed for fish tanks and provide effective aerobic filtration. Included are 4 filter