Clear-N-Clear - Undergravel Filter 20 Gallons Includes snap hook and panic

Includes snap hook and panic snap (quick release) at each respective end

or whatever you choose to clip on

- Allows for night time fetch with your dog

but you will not

Shipping weight – 0

Clear-N-Clear - Undergravel Filter 20 Gallons Includes snap hook and panicThe 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