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CPR Continuous Siphon Overflow Box..600 GPH
Our Price: $99.50 In Stock

A built-in overflow is the most efficient method of draining aquarium water to a filter. If your aquarium does not have built-in overflow, CPR Continuous Siphon Overflows/Prefilters are the best means for getting water from an aquarium to a filter system without expensive modifications to the tank. They quietly skim up to six times more water than units with tubes.

The advantages of CPR Continuous Siphon Overflows/Prefilters include:

* Adjustable water level allows you to
  easily change the level in your tank.
* Black top reduces algae growth.
* Plastic screen to prevent fish loss.
* Quiet operation.

 

CPR Continuous Siphon Overflow Box..1200 GPH
Our Price: $114.95 In Stock

A built-in overflow is the most efficient method of draining aquarium water to a filter. If your aquarium does not have built-in overflow, CPR Continuous Siphon Overflows/Prefilters are the best means for getting water from an aquarium to a filter system without expensive modifications to the tank. They quietly skim up to six times more water than units with tubes.

The advantages of CPR Continuous Siphon Overflows/Prefilters include:

* Adjustable water level allows you to
  easily change the level in your tank.
* Black top reduces algae growth.
* Plastic screen to prevent fish loss.
* Quiet operation.

 

CPR Continuous Siphon Overflow Box..1600 GPH
Our Price: $119.95 In Stock

A built-in overflow is the most efficient method of draining aquarium water to a filter. If your aquarium does not have built-in overflow, CPR Continuous Siphon Overflows/Prefilters are the best means for getting water from an aquarium to a filter system without expensive modifications to the tank. They quietly skim up to six times more water than units with tubes.

The advantages of CPR Continuous Siphon Overflows/Prefilters include:

* Adjustable water level allows you to
  easily change the level in your tank.
* Black top reduces algae growth.
* Plastic screen to prevent fish loss.
* Quiet operation.

 

CPR Bak-Pak 2 Bio Filter - Hang on Back Protein Skimmer W/ Accela Pump
Our Price: $139.95 In Stock

The BAK-PAK™2 Bio-Filter is the second generation external, hang on the back, combination Protein Skimmer and Biological Filtration unit from CPR. The BAK-PAK™ 2, like the original, is designed for tank sizes up to 60 gallons. Water first enters the Protein Skimmer column from the aquarium and then flows through the biological chamber filled with Bio-Bale™ filtration media before returning to the aquarium.

The Protein Skimmer is driven by a rejuvenation venturi powerhead. Bubble dwell time is increased by the counter-current flow in the skimmer column. The quality of the foam collected can be controlled by raising and lowering the collection cup.

To set up the BAK-PAK™ 2, hang the unit behind the aquarium and plug it in -- that's it. New improved design incorporates an easy to clean intake tube and an enclosed, directional outflow to reduce salt splash and micro-bubbles entering into tank. The new design also uses a smoke colored break-resistant collection cup.

Body Size: 7.5" wide, 3" deep, 17" height