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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

Product Code: RCPR09481
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. Includes Rejuvenation Venturi (RVT) Driven Protein Skimmer, RVT Powerhead, Bio Bale biological media & filter floss pad. Return pump NOT included. Recommended tank size: up to 200 gallons.

Our Price (price includes free shipping!) $473.79
In Stock
CPR Aquatic Cyclone Bio Filter CY192 CPR Aquatic Cyclone Bio Filter CY192

Product Code: RCPR09281
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. Includes Rejuvenation Venturi (RVT) Driven Protein Skimmer, RVT Powerhead, Bio Bale biological media & filter floss pad. Return pump NOT included. Recommended tank size: up to 100 gallons.

Our Price (price includes free shipping!) $357.69
In Stock
Tom Rapids Pro Auto Fill System Tom Rapids Pro Auto Fill System

Product Code: RTO01353
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.

Our Price (price includes free shipping!) $110.29
In Stock
CPR Aquatic Blue Wet Dry Connection Hose 6 ft CPR Aquatic Blue Wet Dry Connection Hose, 6 ft

Product Code: RCPR90006
Fits all CPR Wet Dry Filters. The inside diameter of this hose is 1-1/4". There is a 1" inside diameter fixed adapter on either end. Six feet long.

Our Price: $20.79
(Out of Stock)
CPR Aquatic Blue Wet Dry Connection Hose 4 ft CPR Aquatic Blue Wet Dry Connection Hose, 4 ft

Product Code: RCPR90004
Fits all CPR Wet Dry Filters. The inside diameter of this hose is 1-1/4". There is a 1" inside diameter fixed adapter on either end. Four feet long.

Our Price: $16.79
(Out of Stock)
CPR Aquatic Blue Wet Dry Connection Hose 3 ft CPR Aquatic Blue Wet Dry Connection Hose, 3 ft

Product Code: RCPR90003
Fits all CPR Wet Dry Filters. The inside diameter of this hose is 1-1/4". There is a 1" inside diameter fixed adapter on either end. Three feet long.

Our Price: $14.59
In Stock
CPR Aquatic Blue Wet Dry Connection Hose 2 ft CPR Aquatic Blue Wet Dry Connection Hose, 2 ft

Product Code: RCPR90002
Fits all CPR Wet Dry Filters. The inside diameter of this hose is 1-1/4". There is a 1" inside diameter fixed adapter on either end. Two feet long.

Our Price: $12.79
In Stock