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.
Specifications:
- Model: CS100
- Flow Rate: 800gph
- Outflow Size: 1" Bulkhead
Product code: 28
Item No. OF-CPR-CS100
Item No. OF-CPR-CS100
1 Review
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cpr cs-100
been using cpr overflow boxes for years. Great quality and price. Never had any problems. Will use them again when an overflow box is needed.
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Please fix above errors. 
Jay L. Verified Customer 
04-03-25
Robbie M. Verified Customer 04-02-25
Questions & Answers
Popular Questions
Does the "Oxyguard Dissolved Oxygen Calibration Adapter" still included in the box with the PM3 module?
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Does the "Oxyguard Dissolved Oxygen Calibration Adapter" still included (in the box) with the PM3 module? I just opened a PM3 that I bought 2 years ago and the calibration adapter was missing (not in the box).
