Durso Overflow

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    …OM2500, just place the hang on back overflow box onto the edge of your aquarium, and using 1 1/4" soft vinyl tubing you can plumb the box to a sump. The durso style valve lets you fine tune the overflows drain rate, making it completely silent. Removable Weir Durso Style Drain System Compatible with…

    $119.99

    …for all types of overflows and the OM5000 uses dual durso style wedge pipe that allows you to tune the drain flow by just turning the wedge pipe until the noise stops. We do not recommend using DC return pumps with overflow boxes since they have variable flow, and once the overflow box is tuned the…

    $139.99
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