CPR Overflow Box
CPR
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  • Notes

      A built in overflow box 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 sump style filter system without expensive modifications to the tank.

      The advantages of CPR Continuous Siphon Overflows/Prefilters include:

    • They skim up to six times more water than units with U-tubes.
    • 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.
    • Tip: Connecting the bleed hose from the overflow to the air intake of a power head will help the overflow continue to work if it draws some air into it. It will also help the overflow restart in the event of a power failure.

  • Item Description Price Quantity
    CPR Overflow Box
    CS 50
    For tanks up to 60 gal / Drains 300 gph / 1 - 3/4" drain / Width 6.5"
    $89.99

    CPR Overflow Box
    CS 90
    For tanks up to 125 gal / Drains 600 gph / 1 - 1" drain / Width 8"
    $109.99

    CPR Overflow Box
    CS 100
    For tanks up to 175 gal / Drains 800 gph / 1 - 1" drain / Width 10"
    $119.99

    CPR Overflow Box
    CS 102
    For tanks up to 250 gal / Drains 1200 gph / 2 - 1" drains / Width 10"
    $129.99

    CPR Overflow Box
    CS 150
    For tanks up to 300 gal / Drains 1600 gph / 1 - 1.5" drain / Width 10"
    $129.99

    CPR Overflow Box
    CS 202
    For tanks up to 275 gal / Drains 1500 gph / 2 - 1" drains / Width 10"
    $149.99