The value of a biological filter depends on how well it performs the tasks of oxygenation, ammonia conversion and gas exchange on a long term basis. In the wet/dry filter, air and water mix as water trickles over an exposed filter media such as Bio BaleTM. Biological filtration and gas exchange occur as the water flows in a thin layer over the media surface. (CR Series filters provide 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.
CPR 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.
- Recommended Tank Size: Up to 60 Gallons
- Media Capacity: 2 Gallon
- Dimensions (L x W x H): 16" x 8" x 12"
- Inlet/Outlet (Bulkhead): 3/4"/none
- Internal Sump (L x W): 7.5" x 7.25"
CPR Aquatic Aquarium Supplies
In Arcata, located in Northern California, the sea is a way of life. From the advanced Marine Biology department at Humboldt State University, just up the hill from CPR’s headquarters, to Humboldt Bay, about a mile west, CPR is nestled in a perfect environment to develop equipment for marine aquariums. CPR was started in a small garage in 1987 to produce biological filters for local aquarists. People who used CPR filters were impressed by the high quality and affordable prices. Word spread and the company grew. Since then, CPR has expanded to a 10,000 sq. ft. production facility and has developed many innovative products over the years. CPR is incorporating new ideas and technologies all the time. Their goal is to allow aquarists to place the highest performing products in their tanks at reasonable prices.
CPR CR500 Wet/Dry Filter
Posted: 7/26/2012 from POCATELLO, ID UNITED STATES
The wet dry filter is fantastic. Have a well stocked (they breed like rabbits) 50g cichlid tank. The water stays crystal clear, the fish are all healthy, and the filter replacement is cheap. Definatly reccomend getting this system. The upfront cost is higher than a typical HoB filter but not having pay 8 dollars a cartrige once a month really makes it much cheaper in the long run.
Only complaint is that the lid is kind of hard to get off in tight compartments. If you have a tall stand or are putting the sump on the side of the tank then its a non issue.
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Posted: 8/18/2009 from DUNSTABLE, MA UNITED STATES
This is a good product. Very well built. If you buy the kit designed for up to a 60 gallon tank, you might not actually get a funtional kit when it is purchased. The hose going from the overflow to the sump will not fit the connectors, so out of the box, the kit cannot function. You need to spend an addition 15 dollars on a sister site of CPR to find the adapters and have them shipped to you. The bad thing is, you dont know these adapters are needed until you read the instructions with the kit. The quality of the product is outstanding. Whether the product can actually be considered a "kit" is another thing as the word "kit" implies that additional parts will not needed once it has been delivered. I would have given this a MUCH higher rating if it was shipped as a true "kit". To put it in a different prospective, if you buy a model airplane "kit"...one wouldn't assume you have to buy the wings seperately.
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Built well, made to last
Posted: 1/27/2009 from ELLENSBURG, WA UNITED STATES
I bought this because i wanted to change my filtration method, Thick plastic includes everything you need, space for protein skimmer and heater. I like it.
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Great little product!
This is a great little product. Works well, and good manufacturing quality. No complaints here.
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