Penn-Plax Undergravel Aquarium Filter for 20 (Long) - 29 Gallon Tanks – Two 14” x 11.1” Plates – Under Gravel System for Clear, Clean Water – Safe for Freshwater and Saltwater Tanks

Introducing the Clear-Free Premium Under Gravel Filter by Penn Plax, a revolutionary aquarium filtration system that blends simplicity and effectiveness in one neat package. Designed to cater to aquarists of all experience levels, this product is engineered to maintain crystal clear water quality in aquariums ranging from 20 to 29 gallons. Its unique air-driven design, relying on an air pump (not included), makes it exceptionally easy to install and maintain,...

Introducing the Clear-Free Premium Under Gravel Filter by Penn Plax, a revolutionary aquarium filtration system that blends simplicity and effectiveness in one neat package. Designed to cater to aquarists of all experience levels, this product is engineered to maintain crystal clear water quality in aquariums ranging from 20 to 29 gallons. Its unique air-driven design, relying on an air pump (not included), makes it exceptionally easy to install and maintain, ensuring you spend less time on upkeep and more time enjoying your underwater oasis.

This innovative filter employs a comprehensive biological, chemical, and physical filtration system. As air pushes through Air Stones, it suctions water through layers of gravel and filter plates, preventing debris and waste from circulating back into your aquarium. Filt-a-Carb activated carbon cartridges add an extra layer of purification, ensuring the water remains clean and clear. With this system, you can rest assured that optimal water quality will support the health of your aquatic life.

Moreover, the Clear-Free Premium Under Gravel Filter doubles as an aeration system! Simultaneously filtering and oxygenating the tank, it ensures your fish thrive while creating a stunning visual of bubbling air stones. Items included with your purchase consist of essential components such as two filter plates, adjustable lift tubes, and replaceable filtration cartridges, providing everything you need for seamless operation.

The product dimensions are perfectly crafted for versatility, with each filter plate measuring 14” x 11.1”, delivering a combined width of 28” when placed together, making it well-suited for various aquarium sizes.