Filters Undergravel

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

The Bubbler by Penn Plax is an aquarium bottom filter system ideal for small aquariums and fish bowls. This simple, efficient filter is perfect for your aquarium and it comes with a 1/2" lift tube for even better efficiency!

• Simple, efficient filter for small aquariums and fish bowls
• 1/2" lift tube for greater efficiency
• Provides both chemical and mechanical filtration

Note: Filter carbon sold separately.

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

Under Gravel Filter Dimensions:
5.5 Gallon Undergravel Filter: 8" x 16"
10 Gallon Undergravel Filter: 10" x 20"
15 / 20H Gallon Undergravel Filter: 12" x 24"
20L / 29 Gallon Undergravel Filter: 12" x 30"
40 / 55 Gallon Undergravel Filter: 12" x 48"
50 / 60 Gallon Undergravel Filter: 18" x 36"
70 / 90 Gallon Undergravel Filter: 18" x 48"
125 / 135 Gallon Undergravel Filter: 18" x 72"
lates makes this filter most preferred by saltwater aquarists

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

Under Gravel Filter Dimensions:
5.5 Gallon Undergravel Filter: 8" x 16"
10 Gallon Undergravel Filter: 10" x 20"
15 / 20H Gallon Undergravel Filter: 12" x 24"
20L / 29 Gallon Undergravel Filter: 12" x 30"
40 / 55 Gallon Undergravel Filter: 12" x 48"
50 / 60 Gallon Undergravel Filter: 18" x 36"
70 / 90 Gallon Undergravel Filter: 18" x 48"
125 / 135 Gallon Undergravel Filter: 18" x 72"
lates makes this filter most preferred by saltwater aquarists

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

Under Gravel Filter Dimensions:
5.5 Gallon Undergravel Filter: 8" x 16"
10 Gallon Undergravel Filter: 10" x 20"
15 / 20H Gallon Undergravel Filter: 12" x 24"
20L / 29 Gallon Undergravel Filter: 12" x 30"
40 / 55 Gallon Undergravel Filter: 12" x 48"
50 / 60 Gallon Undergravel Filter: 18" x 36"
70 / 90 Gallon Undergravel Filter: 18" x 48"
125 / 135 Gallon Undergravel Filter: 18" x 72"
lates makes this filter most preferred by saltwater aquarists

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

Under Gravel Filter Dimensions:
5.5 Gallon Undergravel Filter: 8" x 16"
10 Gallon Undergravel Filter: 10" x 20"
15 / 20H Gallon Undergravel Filter: 12" x 24"
20L / 29 Gallon Undergravel Filter: 12" x 30"
40 / 55 Gallon Undergravel Filter: 12" x 48"
50 / 60 Gallon Undergravel Filter: 18" x 36"
70 / 90 Gallon Undergravel Filter: 18" x 48"
125 / 135 Gallon Undergravel Filter: 18" x 72"
lates makes this filter most preferred by saltwater aquarists

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

Under Gravel Filter Dimensions:
5.5 Gallon Undergravel Filter: 8" x 16"
10 Gallon Undergravel Filter: 10" x 20"
15 / 20H Gallon Undergravel Filter: 12" x 24"
20L / 29 Gallon Undergravel Filter: 12" x 30"
40 / 55 Gallon Undergravel Filter: 12" x 48"
50 / 60 Gallon Undergravel Filter: 18" x 36"
70 / 90 Gallon Undergravel Filter: 18" x 48"
125 / 135 Gallon Undergravel Filter: 18" x 72"
lates makes this filter most preferred by saltwater aquarists

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

Under Gravel Filter Dimensions:
5.5 Gallon Undergravel Filter: 8" x 16"
10 Gallon Undergravel Filter: 10" x 20"
15 / 20H Gallon Undergravel Filter: 12" x 24"
20L / 29 Gallon Undergravel Filter: 12" x 30"
40 / 55 Gallon Undergravel Filter: 12" x 48"
50 / 60 Gallon Undergravel Filter: 18" x 36"
70 / 90 Gallon Undergravel Filter: 18" x 48"
125 / 135 Gallon Undergravel Filter: 18" x 72"
lates makes this filter most preferred by saltwater aquarists

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

Under Gravel Filter Dimensions:
5.5 Gallon Undergravel Filter: 8" x 16"
10 Gallon Undergravel Filter: 10" x 20"
15 / 20H Gallon Undergravel Filter: 12" x 24"
20L / 29 Gallon Undergravel Filter: 12" x 30"
40 / 55 Gallon Undergravel Filter: 12" x 48"
50 / 60 Gallon Undergravel Filter: 18" x 36"
70 / 90 Gallon Undergravel Filter: 18" x 48"
125 / 135 Gallon Undergravel Filter: 18" x 72"
lates makes this filter most preferred by saltwater aquarists

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

Under Gravel Filter Dimensions:
5.5 Gallon Undergravel Filter: 8" x 16"
10 Gallon Undergravel Filter: 10" x 20"
15 / 20H Gallon Undergravel Filter: 12" x 24"
20L / 29 Gallon Undergravel Filter: 12" x 30"
40 / 55 Gallon Undergravel Filter: 12" x 48"
50 / 60 Gallon Undergravel Filter: 18" x 36"
70 / 90 Gallon Undergravel Filter: 18" x 48"
125 / 135 Gallon Undergravel Filter: 18" x 72"
lates makes this filter most preferred by saltwater aquarists

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).

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

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).

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).

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).

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).

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).

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).

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).

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).