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CPR CS100 Aquarium Overflow Box

Product code: 28

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CPR CS100 Aquarium Overflow Box

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. 
  • Quiet operation. 
  • CS Overflows feature a grated inlet.


  • Model: CS100
  • Flow Rate: 800gph
  • Outflow Size: 1" Bulkhead


Questions on CPR CS100 Aquarium Overflow Box

  • From Joseph at 1/6/2017 6:33 PM
    • Will cs100 work with 72 gallon bow front our i need something smaller?
    • Joseph,
      CS100 will be a good fit for your tank.
    • Do you find this question helpful?  Yes   No

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