Lees Original Undergravel Filter

by Lee's

$20.99 (You Save 47%)
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Key Features

  • 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


Lees Original Undergravel Filter 12" Long x 6" Wide (2.5 Gallons)

Lees Undergravel Filter is the key to providing a strong biological filtration system. Undergravel filters utilize your tank's gravel substrate as a filtering surface area while providing oxygen to help aerate your aquarium water.

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).


Brand Lee's
UPC 010838132040
SKU 13204
Item Number L168399098P16839
Size 12" Long x 6" Wide (2.5 Gallons)
Weight 0.23 lbs.
Pkg Dimensions 8.75" (L) x 3.75" (W) x 0.75" (H)

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Reviewed by Jay C. on Mar 3, 2021

Difficult to put together, a challenge to get set up

Reviewed by Greg W. on Feb 7, 2021

Not sure if it’s working very well.

Reviewed by Pam McKenzie on Dec 31, 2020

Works great, looks good, easy to assemble. Fish are happy!

Reviewed by Wesley S. on Dec 26, 2020

Blows great bubbles!

Reviewed by Lynette Gaddy on Nov 27, 2020

great filter

Reviewed by Lisa Barkley on Sep 26, 2020

Under gravel filtration works!!!

Reviewed by Shelly Gunden on Sep 25, 2020

Works good

Reviewed by Janet U. on Sep 4, 2020

it worked great! I use mine with a dual port air ...

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