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

Flow Rate: 800 GPH
Outflow Size: 1" Bulkhead
Width: 9 3/8"

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