Internal Filters

22 Item(s)

  • Marineland Magnum Polishing Internal Canister Filter
    • Foam Filter Sleeve, water polishing & 3-stage filtration
    • This includes the built-in Magnum Micron Cartridge
    • Includes one Marineland Rite-Size JH Floss Sleeve
    • Black Diamond Premium Activated Carbon included
    • This filter provides the option of modifying your media
    USD 64.99
    USD 64.99
  • Penn Plax Cascade 170 Internal Filter
    These slim, easy to maintain internal filters provide great Physical, Chemical and Biological filtration for any Marine or Tropical aquarium. Comes with a directional flow spout, completely submersible motor with aeration control and an air filter.

    Regular Price: USD 7.99

    Sale Price USD 6.99

    Regular Price: USD 7.99

    Sale Price USD 6.99

  • Economy Corner Filter
    Ideal for small aquariums and aquarium kits. Lee's low-cost, high-quality Economy Corner filter keeps tanks sparkling clean without the use of an airstone.

    Regular Price: USD 2.49

    Sale Price USD 1.99

    Regular Price: USD 2.49

    Sale Price USD 1.99

  • Tetra Whisper In-tank Filter - 3i
    The Whisper In-tank 3i filter mounts on the inside of the aquarium, making it possible to place your tank flush against a wall. It uses air bubbles to move water up the airlift tube and through the filter cartridge making it ideal for keeping small fish.

    Regular Price: USD 12.99

    Sale Price USD 9.99

    Regular Price: USD 12.99

    Sale Price USD 9.99

  • Lee's Triple Flow Corner Filter - Medium
    Filters Internal Filters. Lee's Corner Box Filter
    USD 6.99
    USD 6.99
  • Lee's Triple-Flow Corner Filter - Small
    • Maximum efficiency for up to 45 gallon aquariums
    • This excellent model is made with three intake vents
    • Ideally used for beginners, breeder/ isolation tanks
    • Perfect solution for a fundamental or back-up filter
    • Use for biological, chemical or mechanical filtration
    USD 3.49
    USD 3.49
  • Lee's Quick & Easy Corner Filter - Small
    • Mechanical filtration in smaller aquariums
    • Demonstrates maximum water circulation
    • It easily attaches to your airline and pump
    • The suction cup mounts assist with stability
    • Window for maintenance viewing purposes
    USD 7.99
    USD 7.99
  • Lee's Discard-a-Filter - 2 pk
    • Consists of carbon, zeolite and sponge filtration
    • Suitable for small aquariums or Kritter Keepers
    • This will keep water clean, clear and odor-free
    • Discard after use; approximately every month
    • Includes suction cup mounts for simple set-up
    USD 7.49
    USD 7.49
  • Lee's Discard-a-Filter
    Lee's Discard A Filter is a disposable easy to use filter, that is ideal for keeping the water in smaller aquariums crystal clear. Zeolite, activated carbon, and a sponge provides chemical and mechanical filtration using air from your air pump.
    USD 4.49
    USD 4.49
  • Fluval Underwater Filter - U3
    The new Fluval underwater filter with three stage filtration is ideal for use in fresh, marine or reptile environments. Offers a Flip-Top for quick and easy maintenance and an adjustable 3 way flow for output flexibility.

    Regular Price: USD 49.99

    Sale Price USD 39.99

    Regular Price: USD 49.99

    Sale Price USD 39.99

  • Fluval Underwater Filter - U4
    The new Fluval underwater filter with three stage filtration is ideal for use in fresh, marine or reptile environments. Offers a Flip-Top for quick and easy maintenance and an adjustable 3 way flow for output flexibility.

    Regular Price: USD 69.99

    Sale Price USD 59.99

    Regular Price: USD 69.99

    Sale Price USD 59.99

  • Fluval Underwater Filter - U1
    The new Fluval underwater filter with three stage filtration is ideal for use in fresh, marine or reptile environments. Offers a Flip-Top for quick and easy maintenance and an adjustable 3 way flow for output flexibility.

    Regular Price: USD 29.99

    Sale Price USD 26.99

    Regular Price: USD 29.99

    Sale Price USD 26.99

  • Fluval Underwater Filter - U2
    The new Fluval underwater filter with three stage filtration is ideal for use in fresh, marine or reptile environments. Offers a Flip-Top for quick and easy maintenance and an adjustable 3 way flow for output flexibility.

    Regular Price: USD 39.99

    Sale Price USD 33.99

    Regular Price: USD 39.99

    Sale Price USD 33.99

  • Tetra Whisper Internal Power Filter - 40i
    Whisper In-Tank Filters mount on the inside of your aquarium, making it possible to place the tank flush against the wall. The In-Tank Filter will function in as little as 2 inches of water, making it ideal for turtle tanks, or for creating a waterfall.

    Regular Price: USD 25.99

    Sale Price USD 19.99

    Regular Price: USD 25.99

    Sale Price USD 19.99

  • Tetra Whisper Internal Power Filter - 20i
    Whisper In-Tank Filters mount on the inside of your aquarium, making it possible to place the tank flush against the wall. The In-Tank Filter will function in as little as 2 inches of water, making it ideal for turtle tanks, or for creating a waterfall.

    Regular Price: USD 17.99

    Sale Price USD 15.99

    Regular Price: USD 17.99

    Sale Price USD 15.99

  • Tetra Whisper Internal Power Filter - 10i
    Whisper In-Tank Filters mount on the inside of your aquarium, making it possible to place the tank flush against the wall. The In-Tank Filter will function in as little as 2 inches of water, making it ideal for turtle tanks, or for creating a waterfall.

    Regular Price: USD 11.99

    Sale Price USD 9.99

    Regular Price: USD 11.99

    Sale Price USD 9.99

    Out of stock

  • Lee's Triple-Flow Corner Filter - Large
    • Maximum efficiency for up to 100 gallon aquariums
    • This excellent model is made with three intake vents
    • Ideally used for beginners, breeder/ isolation tanks
    • Perfect solution for a fundamental or back-up filter
    • Use for biological, chemical or mechanical filtration
    USD 5.99
    USD 5.99

    Out of stock

  • QuietFlow Internal Filter - AT10
    • Delivers highly effective 3-stage filtration
    • Ideal for aquariums and terrariums up to 10 gallons
    • Directional return pipe allows horizontal or vertical mounting
    • Easy-to-use flow rate adjuster enables precise output control
    • Includes a limited lifetime manufacturer's warranty!

    Regular Price: USD 19.99

    Sale Price USD 15.99

    Regular Price: USD 19.99

    Sale Price USD 15.99

  • QuietFlow Internal Filter - AT15
    • Delivers highly effective 3-stage filtration
    • Ideal for aquariums and terrariums up to 15 gallons
    • Directional return pipe allows horizontal or vertical mounting
    • Easy-to-use flow rate adjuster enables precise output control
    • Includes a limited lifetime manufacturer's warranty!

    Regular Price: USD 24.99

    Sale Price USD 19.99

    Regular Price: USD 24.99

    Sale Price USD 19.99

  • QuietFlow Internal Filter - AT30
    • Delivers highly effective 3-stage filtration
    • Ideal for aquariums and terrariums up to 30 gallons
    • Directional return pipe allows horizontal or vertical mounting
    • Easy-to-use flow rate adjuster enables precise output control
    • Includes a limited lifetime manufacturer's warranty!

    Regular Price: USD 29.99

    Sale Price USD 24.99

    Regular Price: USD 29.99

    Sale Price USD 24.99

  • QuietFlow Internal Filter - AT40
    • Delivers highly effective 3-stage filtration
    • Ideal for aquariums and terrariums up to 40 gallons
    • Directional return pipe allows horizontal or vertical mounting
    • Easy-to-use flow rate adjuster enables precise output control
    • Includes a limited lifetime manufacturer's warranty!

    Regular Price: USD 32.99

    Sale Price USD 25.99

    Regular Price: USD 32.99

    Sale Price USD 25.99

  • Tom Aquatics Dive Clean Mini Internal Filter
    Powerful mini submersible filter that is ideal for Nano tanks and other small aquariums, as well as for use in reptile tanks. Energy saving compact motor runs on a low 12 Volt power supply for safe operation in water. For freshwater or marine use.

    Regular Price: USD 15.99

    Sale Price USD 13.99

    Regular Price: USD 15.99

    Sale Price USD 13.99

    Out of stock