Auto Top Off Units

Auto Top Off Units

Auto Top Off Units

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  1. Avast Marine Top Off Kit

    Avast Marine Top Off Kit

    Starting at: $89.99

    Finally, a top-off control sensor that is mounted to your sump with a magnet rather than a clunky bracket! Driven by a pressure-sensitive switch located in the relay box, a strong magnetic field won't affect its operation. The sensor tube can't get clogged with calcium deposits or activated by wayward snails as there are no moving parts. Our top-off system is capable of maintaining the sump water level within +/- 1/4" tolerance (1/2" overall) and features a built-in range buffer or hysteresis effect, which prevents rapid on-off switching that sometimes occurs when cheap float switches bob up and down in small waves. The magnet bracket is capable of holding on up to 1/2" thick glass. The slim design relay box is unobtrusive and can handle up to a 3 amp pump at 110v AC. The green LED light indicates when the circuit is active and the pump is running. Learn More

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