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Penn-Plax Cascade 170 Fully Submersible Internal Aquarium Filter

Penn-Plax presents the Cascade 170 Fully Submersible Internal Filter. In addition to delivering crystal clear water throughout the aquarium this filter cycles water at 45 Gallons per Hour (GPH) for tanks up to 10 Gallons in size. It’s great for... more

Penn Plax Aquarium Internal Filter, Crystal in Black/Blue | 9.5 H x 2.5 W x 2.75 D in | 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 Terrarium... more

Penn Plax Cascade 600 Fully Submersible Internal Aquarium Filter, Crystal in Black/Blue | 11.5 H x 3 W x 4 D in | 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

Penn Plax Internal Filter, Crystal in Black/Blue | 5.75 H x 2 W x 2.5 D in | Wayfair CIF1

In addition to delivering crystal clear water throughout the aquarium, the Cascade 300 cycles water at 70 Gallons per Hour (GPH) for tanks up to 10 Gallons in size. It’s great for Freshwater and Saltwater aquariums, along with a variety of Terrarium... more

Penn-Plax Cascade 400 Fully Submersible Internal Aquarium Filter

Penn-Plax presents the Cascade 400 Fully Submersible Internal Filter. In addition to delivering crystal clear water throughout the aquarium this filter cycles water at 110 Gallons per Hour (GPH) for tanks up to 20 Gallons in size. It’s great for... more

Penn-Plax Cascade 455 Fully Submersible Internal Filter for Aquarium Corners – Physical Biological and Chemical Filtration – 120 Gallons per Hour (GPH)

Penn-Plax presents the Cascade 455 Fully Submersible Internal Filter for Aquarium Corners. This filter quietly delivers crystal clear water throughout the aquarium. Its unique design allows it to unobtrusively utilize unused corner space. Furthermore... more

Cascade Internal Filter Disposable Carbon Filter Cartridge Cascade 600 Carbon Cartridge - (2 Pack)

Penn-Plax Cascade Internal Filter Replacement Cartridges - - Our products are always innovative such as original bird toys and accessories Undergravel filters award winning air pumps valves and Quick Nets. We make hugely popular aquariums and... more

Penn-Plax CIF10 Cascade 300 Internal Carbon Filter Cartridges

Cascade filter replacement cartridges from Penn-Plax work to keep your aquarium water clean & clear. Each pack contains 2 disposable filters specially designed to fit your Cascade 300 internal power filter. Each filter uses activated carbon to remove... more

Penn-Plax CIF1FI Cascade Internal Bio Sponge Filter

Penn-Plax Cascade Internal Bio Sponge Filter - - Our products are always innovative such as original bird toys and accessories Undergravel filters award winning air pumps valves and Quick Nets. We make hugely popular aquariums and accessories with wide... more