$6.99 Shipping, Free on orders over $59
Home » Brands » All Brands » Lee's » Lee's Undergravel Filter 20S Gallon
Lee's Undergravel Filter 20S Gallon

Lee's Undergravel Filter 20S Gallon

Item #: 010838132255
Reg: $26.99
Sale: $22.15
You Save: $4.84 (18%)
  • Description
  • Reviews
  • Related Items
Lee's Undergravel Filter is the key to providing a strong biological filtration system. Placed on the bottom surface of the aquarium, the filter plates utilize the gravel bed as a source of surface area and provide oxygen by recirculating the water down through the media and up through the uplift tubes. Designed with adjustable 1" uplift tubes for better water circulation. Multiple plate construction for easy installation. Includes airline diffusers and carbon cartridges and has a fish-saver feature. Advance design allows separate plate installation and features optional flow-thru set-up which can be used with a power head. Made of special quality plastic which resists splitting and cracking. Contains three each: under gravel plates, connector rings, uplift tube assemblies, airline tubing with connectors, air diffusers with connectors and disposable carbon cartridges. For use in freshwater and saltwater aquariums. For 20S gallon aquariums 10" x 30".


  • Fish Saver Elbow
    Protects fish from injury.
  • Air diffusers
    Oxygenates the water.
  • Easy-to-Install Carbon Cartridge
    Keeps water sparkling clean.
  • Gravel Guard
    Keeps gravel from clogging the circulation system.
Review Summary
10 Reviews
80% (8)
0% (0)
0% (0)
10% (1)
10% (1)
80% Recommend this product (8 of 10 responses)
By McGuire
Excellent Performance & Perfect Fit 5.5 Tank
August 28, 2020
Excellent Performance & Perfect Fit 5.5 Tank It is not easy to find this item, especially at this affordable price! 100% satisfaction in quality, performance, price and fast shipping! My fish seem happier TOO! If you have a 5.5 gallon tank, you need this wonderful undergravel filter...
Prosgood quality, perfect function, attractive and includes airstones...
ConsRead the directions! You get one shot! I almost goofed it up because I tend to read directions AFTER.... Look at them first... :)
By Nellie C.
Good quality
April 12, 2018
Perfect fit. Works great.
ProsWill recommend.
By klh
Not impressed with this filter
September 23, 2017
I have used undergravel filters in a number of aquariums and liked them. However the aquariums have all been 20 gallons or larger. This filter is not the same. The air stones sent plenty of bubbles but they didn't exit through the charcoal filter. They just rode over the top. The bubbles were very loud popping on the surface as well. I am not using the filter.
By Jacque K.
Great product
March 19, 2016
Great product just what I needed. Fast shipping and well packaged.
By Sharron
December 3, 2015
does not work as well as I thought it would
By Beverly
Southeast georgia
Perfict for Betta Fish
October 2, 2013
Great Filter easy to assemble. The tubes are adjustable for height. Puts you in control of the flow by adjusting the air (simple, inexpensive air valve needed to control air flow not included ) Your betta or other long finned fish will simply love it. You get biological and carbon filtration all in one. The shipment did get put on back order. But that being said, they did a good job all around.
Prosease of assembly . easy flow for betta. company does keep you posted email .
By Ken
Meridian, ID
Good product
July 31, 2013
This product is just as promised. It can be as two units or joined into 1 big unit. Just what I needed.
ProsThe versatility
By Ed S.
chicago, illinois
underground filter
August 1, 2012
Perfect fit , easy to assemble .
ConsThe charcoal filters fell out a few times but its a good item , filtering ok
By Khoury
Houston TX
Shipping was fast and product exactly as described
September 19, 2011
Have not yet installed in tank but I'm sure it is going to work great.
By Michael D.
United States
So far installed seems to be working as advertised!
August 18, 2011
So far installed seems to be working as advertised!
Lee's Carbon Cartridges 2pk. #13025
Lee's Carbon Cartridges 2pk. #13025
Reg: $3.99
Sale: $3.27
4 Reviews