Aquarium Undergravel Filters
Lees Undergravel Filter is the key to providing a strong biological filtration system. Undergravel filters utilize your tanks gravel substrate as a filtering surface area while providing oxygen to help aerate your aquarium water.
- Provides biological filtration and aeration to aquarium
- Includes airline diffusers, carbon cartridges, Discard-A-Stone and fish-saver feature
- For use in fresh and saltwater aquariums
Placed on the bottom surface of the aquarium, the filter plates utilize the gravel bed as a source of surface area for bio-filtration and provide oxygen by recirculating the water down through the media and up through the uplift tubes.
The advanced design allows separate plate installation and features optional flow-thru setup, which can be used with a powerhead. Adjustable 1" uplift tubes provide superior water circulation. The filter is made of special, premium quality plastic which resists splitting and cracking.
Note: Must be attached to an air pump or powerhead (sold separately).
- $17.95 - $118.95
- Save $60 (52%)
Lees Premium Under Gravel Filters clean your freshwater or saltwater aquarium through a biological filtering process that supports the growth of beneficial bacteria. This allows natural detoxification and maintains proper ammonia balance by circulating water flow through the gravel bed.
- Under Gravel Filter Circulates Water Flow Through the Gravel Bed
- Requires the use of an Air Pump - not included
- Maximize Water Quality by Using a Power Filter
- Provides Biological Filtration
- Can be used in Freshwater Aquariums and Saltwater Aquariums
Lees Premium Undergravel Filter has a multi-level plate design made of special quality plastic which resists splitting or cracking. The larger plate sizes reduce the number of plates required. The added strength of the UGF plates makes this filter most preferred by saltwater aquarists
- $30.95 - $168.95
- Save $84 (51%)
Lees Under Gravel Filter for 1 and 2 Gallon Fish Bowls allows you to maintain fish safely in a bowl or small designer aquarium for long extended periods of time. Keep your tank clean and aerated with this under gravel filter that minimizes maintenance responsibility. Refillable carbon cartridge and plant included.
- Aerates and purifies water naturally
- Includes plant and carbon cartridge
- Under gravel filter for fish bowls
- $10.95 - $11.95
- Save $5 (49%)
The Penn Plax Small World Replacement Cartridge for the Fishbowl Filter is designed to fit the Penn-Plax Small World filter kit. Filled with activated carbon this cartridge will help remove odors and discoloration in your bowl. Provides carefree maintenance, healthy fish and crystal clear water.
- Removes harmful gases and odors
- Clears up unsightly discoloration
- Top quality activated carbon
- Quick, easy, disposable
- $6.95 - $44.95
- Save $23 (51%)