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Filter media for mechanical and biological filtrationHighly porous ceramic exposes greater bacteria-colonizing surfaceIdeal for layering in canister filters - no mess media bagMechanical and biological filtration in one porous media. Ceramic cylinders trap debris without obstructing water flow. Their hollow, super porous structure provides superb surface area for bacterial adhesion. For freshwater or marine aquariums. 3/8" x 3/8" cylinders.Approximately four 8-1/2 oz. packages per liter. Approximately two 24 oz. packages per liter.Please click on "More Information" for FAQs regarding biological filter media.

Durable, reusable, and effective pre-filter sock for sump filters Pre-filter sock includes Inlet Holder and PVC adaptor for convenient installationEasy-to-install mechanical pre-filter unit attaches directly to sump rimsMechanical pre-filter sock removes large particles for crystal clear aquarium water. Easily attaches to sump rims less than 1-1/4". Removable sock hangs from acrylic holder that accepts 1" PVC inlet line from overflow system. Rinse filter sock regularly for extended use. Inlet Holder measures 5-3/8" L x 5" W x 2-1/2" H. Please click on "More Information" for mechanical filtration information.

Durable, reusable, and effective pre-filter sock for sump filters Pre-filter sock includes Inlet Holder and PVC adaptor for convenient installationEasy-to-install mechanical pre-filter unit attaches directly to sump rimsMechanical pre-filter sock removes large particles for crystal clear aquarium water. Easily attaches to sump rims less than 1-1/4". Removable sock hangs from acrylic holder that accepts 1" PVC inlet line from overflow system. Rinse filter sock regularly for extended use. Inlet Holder measures 5-3/8" L x 5" W x 2-1/2" H. Please click on "More Information" for mechanical filtration information.

Durable, reusable, and effective pre-filter sock for sump filters Pre-filter sock includes Inlet Holder and PVC adaptor for convenient installationEasy-to-install mechanical pre-filter unit attaches directly to sump rimsMechanical pre-filter sock removes large particles for crystal clear aquarium water. Easily attaches to sump rims less than 1-1/4". Removable sock hangs from acrylic holder that accepts 1" PVC inlet line from overflow system. Rinse filter sock regularly for extended use. Inlet Holder measures 5-3/8" L x 5" W x 2-1/2" H. Please click on "More Information" for mechanical filtration information.

Durable, reusable, and effective pre-filter sock for sump filters Pre-filter sock includes Inlet Holder and PVC adaptor for convenient installationEasy-to-install mechanical pre-filter unit attaches directly to sump rimsMechanical pre-filter sock removes large particles for crystal clear aquarium water. Easily attaches to sump rims less than 1-1/4". Removable sock hangs from acrylic holder that accepts 1" PVC inlet line from overflow system. Rinse filter sock regularly for extended use. Inlet Holder measures 5-3/8" L x 5" W x 2-1/2" H. Please click on "More Information" for mechanical filtration information.

Durable, reusable, and effective pre-filter sock for sump filters Pre-filter sock includes Inlet Holder and PVC adaptor for convenient installationEasy-to-install mechanical pre-filter unit attaches directly to sump rimsMechanical pre-filter sock removes large particles for crystal clear aquarium water. Easily attaches to sump rims less than 1-1/4". Removable sock hangs from acrylic holder that accepts 1" PVC inlet line from overflow system. Rinse filter sock regularly for extended use. Inlet Holder measures 5-3/8" L x 5" W x 2-1/2" H. Please click on "More Information" for mechanical filtration information.

UV Filter

UV Filter for Aquariums

Ideal for small aquariums and terrariums.

Submersible aquarium UV sterilizers for clean and clear aquarium waterBuilt-in water pump with adjustable flow rate simplifies UV installationCompact, versatile UV sterilizer fits in aquarium or in a sump --> Keep your Submariner UV Sterilizer/Clarifier working at peak performance. Replace old impeller, pre-filter sponge, or Quartz Sleeve for optimum UV performance.Features:Flow control valveAdjustable swivel spout nozzleUVC Lamp indicator--> UV Size Max FlowDimensions Max Size 5 W 132 gph9" x 3" x 2-1/2"40 gal 7 W 132 gph10" x 3" x 2-1/2"70 gal-->Please click on "More Information" for replacement instructions.