• For all types of freshwater tanks and for saltwater fish only tanks 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, plumbing, hoses, siphon pump and return pump (see picture in new window), just order the following products along with your CPR CR900 Wet Dry Filter:

• CPR Wet Dry Connection Hose, 4 foot
• CPR CS90 Siphon Overflow
• Aqua Lifter Water & Air Pump
• Python 10 ft, Clear, Ozone Resistant Airline Tubing (for Aqua Lifter Pump)
• Rio Plus 2100 Pump (UL Listed)
• Inland Seas Over the Back Return

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 mix 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.