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    Best Seller
    Penn Plax Clear-free Premium Under Gravel Aquarium Filter For 40 - 55 Gallon Tanks blue, Crystal | Wayfair CFU55

    Penn Plax Clear-free Premium Under Gravel Aquarium Filter For 40 - 55 Gallon Tanks blue, Crystal | Wayfair CFU55

    Those who’ve been around the aquatic block for a while know that Under Gravel Filters (UGFs) are a testament of time. This Filter is air driven and utilizes an Air Pump (not included) to cycle crystal clear water throughout your aquarium, while... more

    $35.99

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    Penn Plax Radius Rectangle Nano Aquarium Kit – Includes LED Light, Internal Filter | 3.4 Gallon (10"H x 12"W x 8"D) | Wayfair WW110K

    Penn Plax Radius Rectangle Nano Aquarium Kit – Includes LED Light, Internal Filter | 3.4 Gallon (10"H x 12"W x 8"D) | Wayfair WW110K

    This Desktop Aquarium Kit is perfect for small or unused spaces: a desk, dresser, or even on top of an old file cabinet that hasn’t been touched in years. This frameless tank is made from finely constructed bent glass that’s 1/8” thick. At the... more

    $105.99

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    Best Seller
    Penn Plax Radius Rectangle Nano Aquarium Kit – Includes LED Light, Internal Filter | 7.5 Gallon (12"H x 16.5"W x 10.75"D) | Wayfair WW112K

    Penn Plax Radius Rectangle Nano Aquarium Kit – Includes LED Light, Internal Filter | 7.5 Gallon (12"H x 16.5"W x 10.75"D) | Wayfair WW112K

    This Desktop Aquarium Kit is perfect for small or unused spaces: a desk, dresser, or even on top of an old file cabinet that hasn’t been touched in years. This frameless tank is made from finely constructed bent glass that’s 1/8” thick. At the... more

    $162.99

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    Penn Plax Radius Rectangle Nano Aquarium Kit – Includes LED Light, Internal Filter | 10 Gallon (13"H x 18.5"W x 12.5"D) | Wayfair WW113K

    Penn Plax Radius Rectangle Nano Aquarium Kit – Includes LED Light, Internal Filter | 10 Gallon (13"H x 18.5"W x 12.5"D) | Wayfair WW113K

    This Desktop Aquarium Kit is perfect for small or unused spaces: a desk, dresser, or even on top of an old file cabinet that hasn’t been touched in years. This frameless tank is made from finely constructed bent glass that’s 1/8” thick. At the... more

    $220.99

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    Penn Plax Radius Rectangle Nano Aquarium Kit – Includes LED Light, Internal Filter | 5 Gallon (11.5"H x 14.5"W x 9.35"D) | Wayfair WW111K

    Penn Plax Radius Rectangle Nano Aquarium Kit – Includes LED Light, Internal Filter | 5 Gallon (11.5"H x 14.5"W x 9.35"D) | Wayfair WW111K

    This Desktop Aquarium Kit is perfect for small or unused spaces: a desk, dresser, or even on top of an old file cabinet that hasn’t been touched in years. This frameless tank is made from finely constructed bent glass that’s 1/8” thick. At the... more

    $134.99

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    Penn Plax Radius Rectangle Nano Aquarium Kit – Includes LED Light, Internal Filter | 3.4 Gallon (10"H x 12"W x 8"D) | Wayfair WW110K

    Penn Plax Radius Rectangle Nano Aquarium Kit – Includes LED Light, Internal Filter | 3.4 Gallon (10"H x 12"W x 8"D) | Wayfair WW110K

    This Desktop Aquarium Kit is perfect for small or unused spaces: a desk, dresser, or even on top of an old file cabinet that hasn’t been touched in years. This frameless tank is made from finely constructed bent glass that’s 1/8” thick. At the... more

    $105.99

    FREE shipping

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    Penn Plax Premium Under Gravel Aquarium Filter for 20 & 29 Gallon Tanks 17.0 H x 28.0 W x 11.1 D in blueAcrylic (shatterproof w/ great clarity) | Wayfair

    Penn Plax Premium Under Gravel Aquarium Filter for 20 & 29 Gallon Tanks 17.0 H x 28.0 W x 11.1 D in blueAcrylic (shatterproof w/ great clarity) | Wayfair

    Those who’ve been around the aquatic block for a while know that Under Gravel Filters (UGFs) are a testament of time. This Filter is air driven and utilizes an Air Pump (not included) to cycle crystal clear water throughout your aquarium, while... more

    $28.99

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    Penn Plax Cascade Max Flow Aquarium Canister Filter 23.6 H x 16.6 W x 15.0 D in black/gray (shatterproof w/ great clarity) in White | Wayfair CMF1

    Penn Plax Cascade Max Flow Aquarium Canister Filter 23.6 H x 16.6 W x 15.0 D in black/gray (shatterproof w/ great clarity) in White | Wayfair CMF1

    Without effort the Cascade Max Flow Canister Filter runs at a stunning 820 Gallons per Hour, and is purposely designed for larger aquariums, ranging from 164 to 273 gallons. Though, optimal size is 205 gallons. It’s compatible for both freshwater... more

    $279.00

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    Penn Plax Cascade Aquarium Canister Filters 500 – 115 Gallons Per Hour Aquarium Accessory 13.5 H x 11.5 W x 9.0 D | Wayfair CCF1UL

    Penn Plax Cascade Aquarium Canister Filters 500 – 115 Gallons Per Hour Aquarium Accessory 13.5 H x 11.5 W x 9.0 D | Wayfair CCF1UL

    Without effort, the Cascade 500 Canister Filter quietly delivers crystal clear water throughout the tank. This filter cycles water at 115 Gallons per Hour, and is recommended for aquariums up to 30 gallons. It’s compatible for both freshwater and... more

    $129.99

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    Penn Plax Cascade 200 Power Hang-On Aquarium Filter 6.75 H x 7.25 W x 4.75 D, Crystal in Black/Blue | 4.75" L x 7.25" W x 6.75" H | Wayfair CPF4

    Penn Plax Cascade 200 Power Hang-On Aquarium Filter 6.75 H x 7.25 W x 4.75 D, Crystal in Black/Blue | 4.75" L x 7.25" W x 6.75" H | Wayfair CPF4

    The Cascade 200 quietly delivers crystal clear water, and pushes water at 185 Gallons per Hour (GPH) for tanks up to 55 Gallons in size. It’s great for Freshwater and Saltwater Aquariums. Accommodating: The adjustable flow knob allows for increased... more

    $55.00

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    Penn Plax 150 Power Hang-On Aquarium Filter 6.75 H x 7.25 W x 4.75 D, Crystal in Black/Blue | 4.75" L x 7.25" W x 6.75" H | Wayfair CPF3

    Penn Plax 150 Power Hang-On Aquarium Filter 6.75 H x 7.25 W x 4.75 D, Crystal in Black/Blue | 4.75" L x 7.25" W x 6.75" H | Wayfair CPF3

    The 150 quietly delivers crystal clear water, and pushes water at 150 Gallons per Hour (GPH) for tanks up to 35 Gallons in size. It’s great for Freshwater and Saltwater aquariums. Accommodating: The adjustable flow knob allows for increased or... more

    $45.99

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    Penn Plax Cascade 100 Power Filter – Hang-On Filter up to 20 Gallons - For Aquariums Acrylic (shatterproof w/ great clarity) in Black/Blue | Wayfair

    Penn Plax Cascade 100 Power Filter – Hang-On Filter up to 20 Gallons - For Aquariums Acrylic (shatterproof w/ great clarity) in Black/Blue | Wayfair

    The cascade 100 quietly delivers crystal clear water and pushes water at 100 gallons per hour (GPH) for tanks up to 20 gallons in size. It’s great for freshwater and saltwater aquariums. Accommodating: the adjustable flow knob allows for increased... more

    $38.99

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    Penn Plax Cascade 400 Submersible Aquarium Filter Cleans Up to 20 Gallon Fish Tank 9.5 H x 2.5 W x 2.75 D, in Black/Blue | Wayfair CIF2

    Penn Plax Cascade 400 Submersible Aquarium Filter Cleans Up to 20 Gallon Fish Tank 9.5 H x 2.5 W x 2.75 D, in Black/Blue | Wayfair CIF2

    In addition to delivering crystal clear water throughout the aquarium, the Cascade 400 cycles water at 110 Gallons per Hour (GPH) for tanks up to 20 Gallons in size. It’s great for Freshwater and Saltwater aquariums, along with a variety of... more

    $40.99

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    Penn Plax Cascade 20 Power Mini Hang-On Aquarium Filter 4.5 H x 3.75 W x 3.0 D, Crystal in Black/Silver/Blue | 3.0" L x 3.75" W x 4.5" H | Wayfair

    Penn Plax Cascade 20 Power Mini Hang-On Aquarium Filter 4.5 H x 3.75 W x 3.0 D, Crystal in Black/Silver/Blue | 3.0" L x 3.75" W x 4.5" H | Wayfair

    Extremely Beneficial: This filter utilizes disposable, double-sided media cartridges that contain Activated Carbon and Poly Fiber Floss. The included cartridge traps floating particulate matter, removes harmful chemicals and toxins, clears up... more

    $26.99

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    Penn Plax Cascade Aquarium Canister Filters 700 – 185 Gallons Per Hour Aquarium Accessory 15.0 H x 11.5 W x 10.0 D | Wayfair CCF2UL

    Penn Plax Cascade Aquarium Canister Filters 700 – 185 Gallons Per Hour Aquarium Accessory 15.0 H x 11.5 W x 10.0 D | Wayfair CCF2UL

    Without effort, the Cascade 700 Canister Filter quietly delivers crystal clear water throughout the tank. This filter cycles water at 185 Gallons per Hour, and is recommended for aquariums up to 65 gallons. It’s compatible for both freshwater and... more

    $159.07

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    Penn Plax Small World Aquarium Air Pump & Filter Kit/green in Blue | Wayfair SWK1UL

    Penn Plax Small World Aquarium Air Pump & Filter Kit/green in Blue | Wayfair SWK1UL

    The Small World Air Pump and Filter Kit is specifically designed for aquariums and tanks up to 5 gallons. In addition to our Small World, New World, and Betta World habitats, this kit is compatible with other tanks in the market. It fits all shapes... more

    $37.99

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    Penn Plax Cascade Bio-sponge Pads For Max Flow Aquarium Filters/gray in Black | Wayfair CMF1S

    Penn Plax Cascade Bio-sponge Pads For Max Flow Aquarium Filters/gray in Black | Wayfair CMF1S

    Cascade presents Bio-Sponge Replacement Pads for Cascade Max Flow Canister Aquarium Filters. This 2-Pack of Cascade Bio-Sponge Pads is specially designed for Cascade Max Flow Canister Filters, allowing for simple and easy media replenishment. Don’t... more

    $189.99

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    Penn Plax Cascade 1000 Aquarium Canister Filter – 265 Gallons Per Hour 17.0 H x 11.5 W x 10.0 D in black/blue, | Wayfair CCF3UL

    Penn Plax Cascade 1000 Aquarium Canister Filter – 265 Gallons Per Hour 17.0 H x 11.5 W x 10.0 D in black/blue, | Wayfair CCF3UL

    Without effort, the Cascade 1000 Canister Filter quietly delivers crystal-clear water throughout the tank. This filter cycles water at 265 Gallons per Hour and is recommended for aquariums up to 100 gallons. It’s compatible with both freshwater and... more

    $156.99

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    Penn Plax Cascade Aquarium Canister Filter 1500 - 350 Gallons Per Hour 20.5 H x 11.5 W x 12.0 D in black/blue, | Wayfair CCF5UL

    Penn Plax Cascade Aquarium Canister Filter 1500 - 350 Gallons Per Hour 20.5 H x 11.5 W x 12.0 D in black/blue, | Wayfair CCF5UL

    Without effort, the Cascade 1500 Canister Filter quietly delivers crystal clear water throughout the tank. This filter cycles water at 350 Gallons per Hour, and is recommended for aquariums up to 200 gallons. It’s compatible for both freshwater and... more

    $223.99

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    Penn Plax Cascade 600 Fully Submersible Internal Aquarium Filter 11.5 H x 3.0 W x 4.0 D in black/blue, in Blue/Black | Wayfair CIF3

    Penn Plax Cascade 600 Fully Submersible Internal Aquarium Filter 11.5 H x 3.0 W x 4.0 D in black/blue, in Blue/Black | Wayfair CIF3

    In addition to delivering crystal-clear water throughout the aquarium. This filter cycles water at 175 Gallons per Hour (GPH) for tanks up to 50 gallons in size. It’s great for freshwater and saltwater aquariums, along with a variety of terrarium... more

    $47.65

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    Penn Plax Cascade Aquarium Canister Filter 1200 - 150 Gallons Per Hour 20.5 H x 11.5 W x 11.0 D in black/, in Blue | Wayfair CCF4UL

    Penn Plax Cascade Aquarium Canister Filter 1200 - 150 Gallons Per Hour 20.5 H x 11.5 W x 11.0 D in black/, in Blue | Wayfair CCF4UL

    Without effort, the 1200 Canister Filter quietly delivers crystal clear water throughout the tank. This filter cycles water at 315 Gallons per Hour, and is recommended for aquariums up to 150 gallons. It’s compatible for both freshwater and... more

    $212.99

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    Penn Plax Cascade Canistar Hang-on Canister Aquarium Filter 11.15 H x 7.65 W x 6.0 D in black/blue | 6.0" L x 7.65" W x 11.15" H | Wayfair CCFH3

    Penn Plax Cascade Canistar Hang-on Canister Aquarium Filter 11.15 H x 7.65 W x 6.0 D in black/blue | 6.0" L x 7.65" W x 11.15" H | Wayfair CCFH3

    Cascade presents the Canistar Hang-On Canister Filter. This filter provides the power and efficiency of a canister filter, with a sleek and convenient hang-on-the-back design. It can either stand alone or be hung behind an aquarium, is great for... more

    $69.99

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    Penn Plax Cascade Betta Fish Starter Kit – Includes Air Pump, Airline Tubing, Sponge Filter, & Thermometer – 9 Pieces 3.75 H x 1.5 W x 1.5 D | Wayfair

    Penn Plax Cascade Betta Fish Starter Kit – Includes Air Pump, Airline Tubing, Sponge Filter, & Thermometer – 9 Pieces 3.75 H x 1.5 W x 1.5 D | Wayfair

    Cascade presents the 9-Piece Betta Starter Kit. This kit offers a great value for new fish owners, or for aquarists looking to get most of the tools needed for Betta keeping. This kit comes standard with 9 pieces, including a Nano Air Pump and Mini... more

    $31.99

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    Penn Plax Cascade Powered Aquarium Nano Sponge Filter 0.2 H x 6.0 W x 5.3 D in/brown/gray (best for furniture style stands) in Black | Wayfair ONF4

    Penn Plax Cascade Powered Aquarium Nano Sponge Filter 0.2 H x 6.0 W x 5.3 D in/brown/gray (best for furniture style stands) in Black | Wayfair ONF4

    Cascade presents the Powered Aquarium Nano Sponge Filter by PENN-PLAX. This sponge filter is specifically designed for aquariums that house fry, shrimp, and small fish. The two-ribbed sponges trap floating debris without sucking up smaller or weaker... more

    $43.99

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