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    Lee's Round Sponge Filter

    Lee's Round Sponge Filter

    The Dual-Action foam filters are biological filters composed of open-celled foam which provides enormous amounts of usable surface area for beneficial bacteria to colonize. This bacteria breaks down harmful waste substances (ammonia and nitrate),... more

    $27.91 $24.71

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    Oxygen Plus Bio-Filter 6 Repl. Sponge (4-1/2" dia x 4" tall)

    Oxygen Plus Bio-Filter 6 Repl. Sponge (4-1/2" dia x 4" tall)

    These filters allow you to cultivate nitrifying bacteria for superb biological filtration. Great for fry aquariums and brine shrimp hatcheries because they prevent young fry from being trapped in the filter media. Operates silently, creating numerous... more

    $4.99

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    Lee's Premium Undergravel Filter 40/55-gallon

    Lee's Premium Undergravel Filter 40/55-gallon

    Easy-to-install, USA-made undergravel aquarium filter detoxifies freshwater or saltwater aquarium water naturally. The Premium Undergravel Filter circulates water through your aquarium gravel / substrate and facilitates the growth of billions of... more

    $29.99

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    Replace Filter Sponge Cf-400 1 Pieces Coarse Blue

    Replace Filter Sponge Cf-400 1 Pieces Coarse Blue

    Replacement Filter Sponge for CF400-UV, 1 Piece - Coarse/Blue. more

    $9.99

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    Replace Filter Sponge Cf-300 1 Pieces Coarse Blue

    Replace Filter Sponge Cf-300 1 Pieces Coarse Blue

    Replacement Filter Sponge for CF300, 1 Piece - Coarse/Blue. more

    $9.99

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    Penn Plax Reptology 3.25 in. Internal Filter Replacement Bio-sponge

    Penn Plax Reptology 3.25 in. Internal Filter Replacement Bio-sponge

    About Penn Plax:Penn-Plax is a family-owned company in operation since 1959. They specialize in creating excellent pet supplies for animals both great and small. Best known for producing pet products at affordable prices, the Penn-Plax brand is... more

    $8.55

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    Hydro-Sponge Filter V HS950 (125GAL)

    Hydro-Sponge Filter V HS950 (125GAL)

    We offer our customers the largest selection of Pet Supplies online in the world, when we say everything for your pet it's true, we have it. more

    $15.20

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    Zoo Med 501 Filter Media - Mechanical Filter Sponge 1 Filter Sponge

    Zoo Med 501 Filter Media - Mechanical Filter Sponge 1 Filter Sponge

    Traps suspended dirt and debris Keeps water clear and shining Reusable and simple to clean Fits Zoo Med Turtle Clean 15 (formerly 501) Filter more

    $11.94

    FREE shipping

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    Cascade Canister Filter Bio-Sponge 700 / 100 Bio-Sponge BULK - 6 Sponges - (6 x 1 Pack)

    Cascade Canister Filter Bio-Sponge 700 / 100 Bio-Sponge BULK - 6 Sponges - (6 x 1 Pack)

    Allows optimal growth of aerobic bacteria with beneficial effect Keep aquarium free of toxic ammonia and nitrites Simple to use more

    $46.62

    FREE shipping

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    Lee's Premium Undergravel Filter 50/65-gallon

    Lee's Premium Undergravel Filter 50/65-gallon

    Easy-to-install, USA-made undergravel aquarium filter detoxifies freshwater or saltwater aquarium water naturally. The Premium Undergravel Filter circulates water through your aquarium gravel / substrate and facilitates the growth of billions of... more

    $31.99

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    CPR Continuous Siphon Overflow Overflow Sponge 6 pk

    CPR Continuous Siphon Overflow Overflow Sponge 6 pk

    Employ efficient sump-style filters without expensive aquarium modifications. CPR Continuous Siphon Overflow offers a simple and effective alternative to drilling aquariums. Innovative overflow unit quietly transports aquarium water at flow rates much... more

    $9.99

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    Hermit Crab Sponge 1/Card

    Hermit Crab Sponge 1/Card

    Hermit crabs need a supply of fresh drinking water. When soaked in fresh water, the natural sea sponge provides an ideal source of water. more

    $6.99

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    Zoo Med Turtle Clean 511 External Canister Filter Replacement Mechanical Filter Sponge

    Zoo Med Turtle Clean 511 External Canister Filter Replacement Mechanical Filter Sponge

    External canister filter has compact design to maximize internal habitat space Easy-to-use filter is loaded with convenient features to allow for hassle-free operation Comes complete with spray bar system to help eliminate smelly odors and aerate water... more

    $7.99

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    Zeolite Cartr. (2) Lees U.S.

    Zeolite Cartr. (2) Lees U.S.

    An easy-to-install cartridge that solves the common problem of ammonia build-up that fouls aquarium water and destroys livestock. The Disposable Zeolite Cartridge is designed to fit our Economy, Original or Premium Under Gravel Filters. For optimal... more

    $3.99

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    Oxygen Plus Bio-Filter 2 Repl. Sponge (2-1/4" dia x 2-1/4" tall)

    Oxygen Plus Bio-Filter 2 Repl. Sponge (2-1/4" dia x 2-1/4" tall)

    These filters allow you to cultivate nitrifying bacteria for superb biological filtration. Great for fry aquariums and brine shrimp hatcheries because they prevent young fry from being trapped in the filter media. Operates silently, creating numerous... more

    $4.99

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    Hydro-Sponge Pro Filters Pro III

    Hydro-Sponge Pro Filters Pro III

    Redesigned aquarium sponge filters for improved bio-filtration Use reticulated foam filter with higher flow rate powerheads Beneficial bacteria colonize sponge filter for waste breakdown Reticulated foam sponge filters enhance aquarium biological... more

    $8.99

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    Marineland Maxi-Jet PRO Pre-filter Sponge (2 pk)

    Marineland Maxi-Jet PRO Pre-filter Sponge (2 pk)

    Expect more from this amazing 3-in-1 aquarium water pump system! Marineland Maxi-Jet PRO is a multipurpose powerhead and circulation pump that reconfigures to perform three distinct tasks. This powerful, submersible, sealed pump functions as a... more

    $6.99

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    Zoo Med Turtle Clean 50 and 75 External Canister Filter for Aquatic Turtles Repl. Fine Mechanical Sponge for Model 50 (Mfg# TC-50)

    Zoo Med Turtle Clean 50 and 75 External Canister Filter for Aquatic Turtles Repl. Fine Mechanical Sponge for Model 50 (Mfg# TC-50)

    Popular 3-stage canister filter for aquatic turtles now available for larger setups. Zoo Med Turtle Clean 50 & 75 External Canister Filter for Aquatic Turtles features an energy-efficient design that delivers effective mechanical, chemical and... more

    $11.99

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    Hydro-Sponge Pro Filters Pro V

    Hydro-Sponge Pro Filters Pro V

    Redesigned aquarium sponge filters for improved bio-filtration Use reticulated foam filter with higher flow rate powerheads Beneficial bacteria colonize sponge filter for waste breakdown Reticulated foam sponge filters enhance aquarium biological... more

    $11.99

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    Replacement Filter Media Sponge for 24-gallon Nano Cubes

    Replacement Filter Media Sponge for 24-gallon Nano Cubes

    Replacement filter media for Nano Cube aquariums Specially sized mechanical, chemical, and biological filter media 3-stage filtration to help maintain optimum water quality Replacement filter media for Nano Cube aquariums. Specially sized to fit within... more

    $5.99

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    Zoo Med Turtle Clean 15 External Canister Filter 501 Sponge Insert for Model 15 (TC-30)

    Zoo Med Turtle Clean 15 External Canister Filter 501 Sponge Insert for Model 15 (TC-30)

    Specially designed turtle filter tackles ammonia and waste problems in turtle habitats. Quiet, yet powerful, external 3-stage filter systems keep water exceptionally clean and odor-free. Water continuously circulates to trap debris, neutralize ammonia,... more

    $4.99

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    Zoo Med Turtle Clean 511 External Canister Filter Replacement Coarse Sponge

    Zoo Med Turtle Clean 511 External Canister Filter Replacement Coarse Sponge

    External canister filter has compact design to maximize internal habitat space Easy-to-use filter is loaded with convenient features to allow for hassle-free operation Comes complete with spray bar system to help eliminate smelly odors and aerate water... more

    $4.99

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    Hydro-Sponge Pro Filters Pro II

    Hydro-Sponge Pro Filters Pro II

    Redesigned aquarium sponge filters for improved bio-filtration Use reticulated foam filter with higher flow rate powerheads Beneficial bacteria colonize sponge filter for waste breakdown Reticulated foam sponge filters enhance aquarium biological... more

    $7.99

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    Oxygen Plus Bio-Filter 4 Repl. Sponge (4-1/2" dia x 4-3/8" tall)

    Oxygen Plus Bio-Filter 4 Repl. Sponge (4-1/2" dia x 4-3/8" tall)

    These filters allow you to cultivate nitrifying bacteria for superb biological filtration. Great for fry aquariums and brine shrimp hatcheries because they prevent young fry from being trapped in the filter media. Operates silently, creating numerous... more

    $4.99

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    Oxygen Plus Bio-Filter 10 Repl. Sponge (7" dia x 4" tall)

    Oxygen Plus Bio-Filter 10 Repl. Sponge (7" dia x 4" tall)

    These filters allow you to cultivate nitrifying bacteria for superb biological filtration. Great for fry aquariums and brine shrimp hatcheries because they prevent young fry from being trapped in the filter media. Operates silently, creating numerous... more

    $5.99

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    Hydro-Sponge Pro Filters Pro IV

    Hydro-Sponge Pro Filters Pro IV

    Redesigned aquarium sponge filters for improved bio-filtration Use reticulated foam filter with higher flow rate powerheads Beneficial bacteria colonize sponge filter for waste breakdown Reticulated foam sponge filters enhance aquarium biological... more

    $9.99

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    Filter Saver Bag 4X8

    Filter Saver Bag 4X8

    Filter Saver Bags are reUSAble, fine mesh filter bags that have drawstrings to secure bag closure. They can be used to hold carbon, ammonia remover, or any other filter media or resin. Filter Saver Bags are essential in helping to prevent costly damage... more

    $4.99

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    Economy Corner Filter

    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. The basket insert is injection-molded to eliminate unstable tubes. more

    $2.99

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    Filter Saver Bag 4X12

    Filter Saver Bag 4X12

    Filter Saver Bags are reUSAble, fine mesh filter bags that have drawstrings to secure bag closure. They can be used to hold carbon, ammonia remover, or any other filter media or resin. Filter Saver Bags are essential in helping to prevent costly damage... more

    $4.99

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    Elbows For U G Filter (E Bag)

    Elbows For U G Filter (E Bag)

    Replacement parts and additions for existing filter systems. Fish Saver Elbows will fit any 1" uplift tube. more

    $3.99

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    Undergravel Filter 2 gal 5"

    Undergravel Filter 2 gal 5"

    Bowl Filter allows you to maintain fish safely in a bowl or small designer aquarium for extended periods of time. Includes Plant and Carbon Cartridge. Minimizes maintenance responsibility. more

    $4.99

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    Undergravel Filter 1 gal 4"

    Undergravel Filter 1 gal 4"

    Bowl Filter allows you to maintain fish safely in a bowl or small designer aquarium for extended periods of time. Includes Plant and Carbon Cartridge. Minimizes maintenance responsibility. more

    $3.99

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    Penn Plax Cascade Power Aquarium Filters Bio-Sponge

    Penn Plax Cascade Power Aquarium Filters Bio-Sponge

    About Penn Plax:Penn-Plax is a family-owned company in operation since 1959. They specialize in creating excellent pet supplies for animals both great and small. Best known for producing pet products at affordable prices, the Penn-Plax brand is... more

    $5.99

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    Penn Plax REP71 Internal Filter Replacement Sponges, As Shown

    Penn Plax REP71 Internal Filter Replacement Sponges, As Shown

    Penn Plax is a name that stands for Quality, Innovation and Integrity In the Pet Industry for over 50 years Experience a great line of Pet Products in all categories! Penn-Plax is committed to creating and manufacturing innovative pet products for... more

    $17.09

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    JBJ EFU-FS Reaction Canister Fine Sponge Aquarium Filters, As Shown

    JBJ EFU-FS Reaction Canister Fine Sponge Aquarium Filters, As Shown

    Enhance aquarium filtration with Reaction large-capacity, 4 stage canister filters. Revolutionary canister filters boast greater media-storing capacity so aquarium water comes into contact with more filter media during the initial pass. Combined with a... more

    $21.21

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    Penn Plax REP176 Internal Filter Replacement Sponge, As Shown

    Penn Plax REP176 Internal Filter Replacement Sponge, As Shown

    Penn Plax is a name that stands for Quality, Innovation and Integrity In the Pet Industry for over 50 years Experience a great line of Pet Products in all categories! Penn-Plax is committed to creating and manufacturing innovative pet products for... more

    $16.90

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    JBJ EFU-CS Reaction Canister Coarse Sponge Aquarium Filters, As Shown

    JBJ EFU-CS Reaction Canister Coarse Sponge Aquarium Filters, As Shown

    JBJ offers high quality aquarium products. We produce unique products to meet demand of hobbyists from novice to reef enthusiasts. We are committed to create the absolute highest quality equipment with visionary innovation. Our mission is to create... more

    $21.21

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    Penn Plax REP46 Internal Filter Replacement Bio-Sponges, As Shown

    Penn Plax REP46 Internal Filter Replacement Bio-Sponges, As Shown

    Penn Plax is a name that stands for Quality, Innovation and Integrity In the Pet Industry for over 50 years Experience a great line of Pet Products in all categories! Penn-Plax is committed to creating and manufacturing innovative pet products for... more

    $17.12

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    Hydro IV Sponge Pro Filter - Up to 80 gallons

    Hydro IV Sponge Pro Filter - Up to 80 gallons

    HYDRO-SPONGE FILTER V HS950 (125GAL) For aquariums up to 125 gallons in size. Provides biological and chemical filtration. Easy to clean. Can be used with a power head. Raised off bottom. Sponge size 4 x5 3 3/4. Size including the base, step extension,... more

    $12.45

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    Lee's Premium Undergravel Filter 30-gallon

    Lee's Premium Undergravel Filter 30-gallon

    Easy-to-install, USA-made undergravel aquarium filter detoxifies freshwater or saltwater aquarium water naturally. The Premium Undergravel Filter circulates water through your aquarium gravel / substrate and facilitates the growth of billions of... more

    $22.99

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