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Wet Dry Filters/Sumps: CPR Wet Dry Filters, Cyclone Bio-Filters
CPR Wet Dry Filters are designed for long term reliability and ease of maintenance. These filters incorporate superior design features, such as:
  • Simple installation and operation
  • Compact size to easily fit under your aquarium stand
  • Excellent craftsmanship, all edges flame polished
  • Efficient drip plate or drip lid dispersal
  • Specially designed vented lids allow for proper gas exchange, and do not warp
  • Includes Bio Bale biological filter media
Wet Dry filters are recommended for all types of freshwater tanks and for saltwater fish only tanks. Wet Dry filters work by mixing air and water as the water from the overflow box trickles over an exposed filter media such as Bio Bale. Biological filtration and gas exchange occur as the water flows in a thin layer over the media surface. The Bio Bale media provides optimum growing conditions for bacteria, which oxidize nitrite and toxic ammonia. The rapid oxidation of ammonia and nitrite helps to maintain a stress free environment for aquatic life.

For a complete filtration system including an CPR overflow box, plumbing, hoses, siphon pump and return pump just order the recommended additions listed under the Wet Dry Filter (click the more info link under the Wet Dry Filter listing for the complete information for each Wet Dry Filter).
CPR Wet Dry Filters


Visit the Filtration Overview Page for recommended equipment for reef, saltwater fish only and freshwater tanks, and for some basic aquarium filtration theory.
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CPR Aquatic Cyclone Bio Filter CY194
CPR Aquatic Cyclone Bio Filter CY194
Our Price (price includes free shipping!) $473.79
In Stock

The CPR Cyclone Bio Filter CY194 is designed to provide a protein skimmer, biological trickle filter, and sump space all in one compact unit. It has a bypass for the protein skimmer so that the water and air intake are always constant and provide maximum skimming action. There is an adjustable gate which allows fine tuning of the height of the water in the protein skimmer.

Specifications:
  • Includes Rejuvenation Venturi (RVT) Driven Protein Skimmer and RVT Powerhead
  • Includes Bio Bale biological media & filter floss pad
  • Includes CPR Aquatic Wet Dry Connection Hose, 4 ft (1-1/4" hose with tapered 1" adapters)
  • Return pump NOT included. Can be used with a submersible or external pump. Maximum Flow Rate: 400 gph
  • Recommended Tank Size: Up to 200 gallons
  • Media Capacity: 4 gallons
  • Deep sump area for robes,chemical media, etc.
  • Non-warping lid which prevents excessive evaporation
  • Disassembles quickly and easily for cleaning
  • Sump Area: 12 gallons
  • Skimmer Diameter: 6"
  • Dimensions: 20.25" L X 12.25" W X 18" H
  • Individually handcrafted in the USA
  • CPR Aquatic Cyclone Bio-Filter Overview and Installation Video (You Tube)
CPR Aquatic Cyclone Bio Filter CY192
CPR Aquatic Cyclone Bio Filter CY192
Our Price (price includes free shipping!) $357.69
In Stock

The CPR Cyclone Bio Filter CY192 is designed to provide a protein skimmer, biological trickle filter, and sump space all in one compact unit. It has a bypass for the protein skimmer so that the water and air intake are always constant and provide maximum skimming action. There is an adjustable gate which allows fine tuning of the height of the water in the protein skimmer.

Specifications:
  • Includes Rejuvenation Venturi (RVT) Driven Protein Skimmer and RVT Powerhead
  • Includes Bio Bale biological media & filter floss pad
  • Includes CPR Aquatic Wet Dry Connection Hose, 4 ft (1-1/4" hose with tapered 1" adapters)
  • Return pump NOT included. Can be used with a submersible or external pump. Maximum Flow Rate: 400 gph
  • Recommended Tank Size: Up to 100 gallons
  • Media Capacity: 1.5 gallons
  • Deep sump area for robes,chemical media, etc.
  • Non-warping lid which prevents excessive evaporation
  • Disassembles quickly and easily for cleaning
  • Sump Area: 4 gallons
  • Skimmer Diameter: 4"
  • Dimensions: 14.5" L X 9" W X 14.5" H
  • Individually handcrafted in the USA
  • CPR Aquatic Cyclone Bio-Filter Overview and Installation Video (You Tube)
CPR CR2000 Wet Dry Filter
CPR Aquatic CR2000 Wet Dry Filter
Our Price (price includes free shipping!) $283.89
In Stock

  • For all types of freshwater tanks and for saltwater fish only tanks up to 200 gallons
  • Capacity: 1 cubic foot
  • Dimensions: 24" length x 12.5" width x 20" height
  • Internal Sump 11-3/4" length X 10" width
  • Includes Bio Bale biological media
  • 1" bulkhead inlet / 3/4" bulkhead outlet

For a complete filtration system including an CPR overflow box. . .

CPR CR1000 Wet Dry Filter
CPR Aquatic CR1000 Wet Dry Filter
Our Price (price includes free shipping!) $225.69
In Stock

  • For all types of freshwater tanks and for saltwater fish only tanks up to 150 gallons
  • Capacity: 5 gallons
  • Dimensions: 20" length x 12" width x 15" height
  • Internal Sump 11" length X 7" width
  • Includes Bio Bale biological media
  • 1" bulkhead inlet / 3/4" bulkhead outlet

For a complete filtration system including an CPR overflow box. . .

CPR CR900 Wet Dry Filter
CPR Aquatic CR900 Wet Dry Filter
Our Price (price includes free shipping!) $173.19
In Stock

  • For all types of freshwater tanks and for saltwater fish only tanks up to 125 gallons
  • Capacity: 4 gallons
  • Dimensions: 21" length x 10" width x 15.5" height
  • Internal Sump 9-1/4" length X 8-3/4" width
  • Includes Bio Bale biological media
  • 1" bulkhead inlet / No outlet bulkhead

For a complete filtration system including an CPR overflow box. . .

Tom Rapids Pro Auto Fill System
Tom Rapids Pro Auto Fill System
Our Price: $110.29
In Stock

The Tom Rapids Pro Auto Fill System is an automatic, hassle-free way to easily replace water evaporation in an aquarium. It automatically replenishes up to 3.5 gallons of evaporated aquarium water directly into your wet/dry filter sump. Just fill with water and attach to your sump, and the water till automatically be topped off.

The Tom Rapids Pro Auto Fill System is designed for use with the Tom Rapids Pro Series RP3 Canister Filter (and comes stock with the Tom Rapids Pro Series RP3 Plus Canister Filter With Auto Fill System).

To use with a sump or wet/dry filter you must have a bulkhead in the sump or wet/dry. Using the provided hose you just need to have the plumbing parts to connect the provided US National Standard 3/4" Female Pipe Thread fitting to your sump bulkhead.

Using the Auto Fill is preferable to adding large amounts of fresh water at one time, which can shock saltwater animals. The Auto Fill System slowly adds water to your sump. The System has almost no evaporation due to the reduction of surface-air contact in the totally enclosed container.
CPR Wet Dry Connection Hose, 4 ft
CPR Aquatic Wet Dry Connection Hose, 4 ft
Our Price: $21.99
In Stock

Fits all CPR Wet Dry Filters. The inside diameter of this hose is about 1 1/8 and the outside diameter is about 1 1/4.