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Aquarium Filter Cartridges

Filters

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Original price $8.80 - Original price $66.42
Original price
$8.80 - $66.42
$8.80 - $66.42
Current price $8.80

Tetra Whisper Bio-Bag Filter Cartridges for Aquariums Medium

Tetra
24 in stock

Tetra Whisper Bio-Bag Cartridge replacements complete the Whisper Power Filter package for a clean, easy-to-maintain aquarium. Filled with ultra-ac...

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Original price $8.80 - Original price $66.42
Original price
$8.80 - $66.42
$8.80 - $66.42
Current price $8.80
Original price $8.05 - Original price $117.24
Original price
$8.05 - $117.24
$8.05 - $117.24
Current price $8.05

Tetra Whisper Bio-Bag Disposable Filter Cartridges Large

Tetra
Only 1 left!

Tetra Whisper Bio-Bag Cartridge replacements complete the Whisper Power Filter package for a clean, easy-to-maintain aquarium. Filled with ultra-ac...

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Original price $8.05 - Original price $117.24
Original price
$8.05 - $117.24
$8.05 - $117.24
Current price $8.05
Original price $11.79 - Original price $68.63
Original price
$11.79 - $68.63
$11.79 - $68.63
Current price $11.79

Tetra Carbon Filters for Whisper EX Power Filters Large

Tetra
16 in stock

Tetra Whisper Carbon Filter Cartridges complete the Whisper Power Filter package for a clean, easy-to-maintain aquarium. The included ready-to-use ...

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Original price $11.79 - Original price $68.63
Original price
$11.79 - $68.63
$11.79 - $68.63
Current price $11.79
Original price $4.27 - Original price $24.86
Original price
$4.27 - $24.86
$4.27 - $24.86
Current price $4.27

Tetra Bio-Bag Disposable Filter Cartridges Extra Small

Tetra
56 in stock

These disposable filter cartridges are easy to use and work to help keep your fish tank in tip-top condition. The ultra-activated carbon is designe...

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Original price $4.27 - Original price $24.86
Original price
$4.27 - $24.86
$4.27 - $24.86
Current price $4.27
Original price $2.67 - Original price $15.49
Original price
$2.67 - $15.49
$2.67 - $15.49
Current price $2.67

Tetra Bio-Bag Cartridges with StayClean Medium

Tetra
12 in stock

Tetra Bio-Bag Cartridges with StayClean technology make efficient maintenance of your aquarium easier than ever. These unique cartridges combine Te...

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Original price $2.67 - Original price $15.49
Original price
$2.67 - $15.49
$2.67 - $15.49
Current price $2.67
Original price $9.10 - Original price $105.86
Original price
$9.10 - $105.86
$9.10 - $105.86
Current price $9.10

Tetra Bio-Bag Cartridges with StayClean Large

Tetra
46 in stock

Tetra Bio-Bag Cartridges with StayClean technology make efficient maintenance of your aquarium easier than ever. These unique cartridges combine Te...

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Original price $9.10 - Original price $105.86
Original price
$9.10 - $105.86
$9.10 - $105.86
Current price $9.10
Original price $6.15 - Original price $71.53
Original price
$6.15 - $71.53
$6.15 - $71.53
Current price $6.15

Penn Plax Water World Prism Replacement Floss / Carbon Filter Cartridges

Penn Plax
Only 4 left!

The Penn Plax Water World Prism Replacement Floss / Carbon Filter Cartridges are a disposable carbon replacement cartridge designed to fit the Pris...

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Original price $6.15 - Original price $71.53
Original price
$6.15 - $71.53
$6.15 - $71.53
Current price $6.15
Original price $5.12 - Original price $29.79
Original price
$5.12 - $29.79
$5.12 - $29.79
Current price $5.12

Penn Plax Small World Replacement Cartridge for the Fishbowl Filter

Penn Plax
34 in stock

The Penn Plax Small World Replacement Cartridge for the Fishbowl Filter is designed to fit the Penn-Plax Small World filter kit. Filled with activa...

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Original price $5.12 - Original price $29.79
Original price
$5.12 - $29.79
$5.12 - $29.79
Current price $5.12
Original price $6.70 - Original price $38.99
Original price
$6.70 - $38.99
$6.70 - $38.99
Current price $6.70

Penn Plax Smallword Replacement Filtration Units

Penn Plax
190 in stock

Penn-Plax Smallworld Replacement Filtration Units remove harmful gases, odor and discoloration. Disposable, quick and easy filtration units for use...

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Original price $6.70 - Original price $38.99
Original price
$6.70 - $38.99
$6.70 - $38.99
Current price $6.70
Original price $5.56 - Original price $97.06
Original price
$5.56 - $97.06
$5.56 - $97.06
Current price $5.56

Penn Plax Filt-a-Carb Universal Carbon Under Gravel Filter Cartridge

Penn Plax
19 in stock

Penn Plax Filt-a-Carb Universal Carbon Undergravel Filter Cartridge helps keep your aquarium water clean. Fits most undergravel filters. Contains q...

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Original price $5.56 - Original price $97.06
Original price
$5.56 - $97.06
$5.56 - $97.06
Current price $5.56
Original price $5.28 - Original price $30.74
Original price
$5.28 - $30.74
$5.28 - $30.74
Current price $5.28

Penn Plax Filt-a-Carb Undertow and Perfect-A-Flow Carbon Under Gravel Filter Cartridge

Penn Plax
Only 2 left!

Penn Plax Filt-a-Carb Undertow & Perfect-A-Flow Carbon Undergravel Filter Cartridge helps keep your aquarium water clean. Fits the Penn Plax Un...

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Original price $5.28 - Original price $30.74
Original price
$5.28 - $30.74
$5.28 - $30.74
Current price $5.28
Original price $2.51 - Original price $9.74
Original price
$2.51 - $9.74
$2.51 - $9.74
Current price $2.51

Penn Plax Clear-Free Disposable Cartridges for Aquarium Filters

Penn Plax
19 in stock

Penn Plax Clear-Free I Filter Cartridges are made to fit the Penn Plax Clear Free I Filters. These cartridges come with high quality foam and floss...

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Original price $2.51 - Original price $9.74
Original price
$2.51 - $9.74
$2.51 - $9.74
Current price $2.51
Original price $8.67 - Original price $33.65
Original price
$8.67 - $33.65
$8.67 - $33.65
Current price $8.67

Penn Plax Cascade 600 Bio-Sponge

Penn Plax
6 in stock

The Replacement Bio-Sponge for the Penn Plax Cascade Internal Filter optimizes colonization of beneficial aerobic bacteria and removes ammonia and ...

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Original price $8.67 - Original price $33.65
Original price
$8.67 - $33.65
$8.67 - $33.65
Current price $8.67
Original price $6.14 - Original price $35.74
Original price
$6.14 - $35.74
$6.14 - $35.74
Current price $6.14

Penn Plax Cascade 400 Bio-Sponge

Penn Plax
28 in stock

The Replacement Bio-Sponge for the Penn Plax Cascade Internal Filter optimizes colonization of beneficial aerobic bacteria and removes ammonia and ...

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Original price $6.14 - Original price $35.74
Original price
$6.14 - $35.74
$6.14 - $35.74
Current price $6.14
Original price $13.55 - Original price $78.85
Original price
$13.55 - $78.85
$13.55 - $78.85
Current price $13.55

Penn Plax Cascade 300 Bio-Sponge

Penn Plax
Only 3 left!

The Replacement Bio-Sponge for the Penn Plax Cascade Internal Filter optimizes colonization of beneficial aerobic bacteria and removes ammonia and ...

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Original price $13.55 - Original price $78.85
Original price
$13.55 - $78.85
$13.55 - $78.85
Current price $13.55
Original price $8.08 - Original price $47.02
Original price
$8.08 - $47.02
$8.08 - $47.02
Current price $8.08

Marineland Rite-Size Z Cartridge (Eclipse Explorer, System 2 and 3, Corner 5, Hex 5 and 7)

Marineland
18 in stock

Marineland Eclipse Filtration Systems filter cartridges are designed for optimal performance and incredible ease of use. Rite-Size Z cartridges fea...

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Original price $8.08 - Original price $47.02
Original price
$8.08 - $47.02
$8.08 - $47.02
Current price $8.08
Original price $3.78 - Original price $21.98
Original price
$3.78 - $21.98
$3.78 - $21.98
Current price $3.78

Marineland Rite-Size TC Floss Sleeve for Magnum 200 Polishing Internal Filters

Marineland
52 in stock

The Magnum 2000 Floss Sleeve is specifically designed with a fine mesh that traps and holds dirt particles, while the sleeves open cell constructio...

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Original price $3.78 - Original price $21.98
Original price
$3.78 - $21.98
$3.78 - $21.98
Current price $3.78
Original price $7.80 - Original price $113.50
Original price
$7.80 - $113.50
$7.80 - $113.50
Current price $7.80

Marineland Rite-Size E Cartridge (Emperor 280 and 400)

Marineland
21 in stock

Marineland Bio-Wheel Emperor Power Filters cartridges are designed for optimal performance and incredible ease of use. Rite-Size E cartridges featu...

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Original price $7.80 - Original price $113.50
Original price
$7.80 - $113.50
$7.80 - $113.50
Current price $7.80
Original price $14.43 - Original price $83.96
Original price
$14.43 - $83.96
$14.43 - $83.96
Current price $14.43

Marineland Rite-Size B Cartridge (Penguin 110B, 125B and 150B)

Marineland
37 in stock

Marineland Bio-Wheel Penguin Power Filter Cartridges are designed to meet the absolute highest standards of water purification performance and oper...

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Original price $14.43 - Original price $83.96
Original price
$14.43 - $83.96
$14.43 - $83.96
Current price $14.43
Original price $14.43 - Original price $83.96
Original price
$14.43 - $83.96
$14.43 - $83.96
Current price $14.43

Marineland Rite-Size A Cartridge (Penguin 99B, 100B and Mini)

Marineland
8 in stock

Marineland Bio-Wheel Penguin Power Filter Cartridges are designed to meet the absolute highest standards of water purification performance and oper...

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Original price $14.43 - Original price $83.96
Original price
$14.43 - $83.96
$14.43 - $83.96
Current price $14.43
Original price $21.92 - Original price $63.80
Original price
$21.92 - $63.80
$21.92 - $63.80
Current price $21.92

Marineland Penguin Power Filter Cartridge Rite-Size C

Marineland
72 in stock

Marineland Bio-Wheel Penguin Power Filter Cartridges provide premium activated carbon for efficient mechanical and chemical filtration, keeping you...

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Original price $21.92 - Original price $63.80
Original price
$21.92 - $63.80
$21.92 - $63.80
Current price $21.92
Original price $7.87 - Original price $22.87
Original price
$7.87 - $22.87
$7.87 - $22.87
Current price $7.87

Marineland Micron Cartridge for Magnum 200 Canister Filters

Marineland
38 in stock

The Marineland Micron Filter for Magnum 200 polishes the water by removing fine particles, leaving the water sparkling clean. The micron filter wor...

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Original price $7.87 - Original price $22.87
Original price
$7.87 - $22.87
$7.87 - $22.87
Current price $7.87
Original price $4.88 - Original price $28.41
Original price
$4.88 - $28.41
$4.88 - $28.41
Current price $4.88

Marina Replacement Power Cartridge for i25 Filters

Marina
27 in stock

Marina i25 Replacement Power Cartridges are made to fit in the Marina i25 internal filter. The unique design of these cartridges allows water to ea...

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Original price $4.88 - Original price $28.41
Original price
$4.88 - $28.41
$4.88 - $28.41
Current price $4.88
Original price $5.96 - Original price $34.69
Original price
$5.96 - $34.69
$5.96 - $34.69
Current price $5.96

Lees Premium Disposable Carbon Cartridges

Lees
82 in stock

Lees Cartridge Premuim Dispenser 2-Pack is an easy-to-install cartridge with twice the high-grade, activated carbon of our Standard Disposable Carb...

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Original price $5.96 - Original price $34.69
Original price
$5.96 - $34.69
$5.96 - $34.69
Current price $5.96
Original price $4.64 - Original price $26.95
Original price
$4.64 - $26.95
$4.64 - $26.95
Current price $4.64

Lees Carbon Cartridges for Under Gravel Filters for Aquariums

Lees
18 in stock

Lees Cartridge Carbon Dispenser is an easy-to-install cartridge filled with high-grade, activated carbon. Disposable Carbon Cartridges keep tanks s...

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Original price $4.64 - Original price $26.95
Original price
$4.64 - $26.95
$4.64 - $26.95
Current price $4.64
Original price $5.60 - Original price $86.14
Original price
$5.60 - $86.14
$5.60 - $86.14
Current price $5.60

Fluval Underwater Filter Stage 2 Poly/Carbon Cartridges

Fluval
40 in stock

Fluval U Series Filter Poly / Carbon Cartridges have two sides for the most effective filtration. The U Series Cartridges is a polyester filter pad...

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Original price $5.60 - Original price $86.14
Original price
$5.60 - $86.14
$5.60 - $86.14
Current price $5.60
Original price $8.96 - Original price $52.18
Original price
$8.96 - $52.18
$8.96 - $52.18
Current price $8.96

Coralife BioCube Filter Cartridges

Coralife
30 in stock

The Coralife BioCube Filter Cartridge includes 2 replacement cartridges that fit the BioCube 8, 14, 29, and HQI. These cartridges help keep your aq...

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Original price $8.96 - Original price $52.18
Original price
$8.96 - $52.18
$8.96 - $52.18
Current price $8.96
Original price $25.59 - Original price $74.48
Original price
$25.59 - $74.48
$25.59 - $74.48
Current price $25.59

Cascade Disposable Floss/Carbon Filter Cartridges for 300 Power Filter

Cascade
Only 3 left!

The Cascade 300 Power Filter Cartridge is a disposable floss/carbon replacement cartridge designed to fit the Cascade 300 filter model. The cartrid...

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Original price $25.59 - Original price $74.48
Original price
$25.59 - $74.48
$25.59 - $74.48
Current price $25.59
Original price $9.65 - Original price $74.85
Original price
$9.65 - $74.85
$9.65 - $74.85
Current price $9.65