Johnson 500 GPH 12V submersible pumps have powerful permanent magnet motors and 3/4 inch discharge. These little workhorses are the standard pumps used on gold wheels, mini-sluices and recirculating systems. 18 month warranty. 500 gph unit draws 2.5 amps; 750 gph draws 3 amps; 1000 gph draws 3.2 amps.
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