Low level sump pump as it has a built in diaphragm switch for automatic operation that can pump down to 1/2 inch of water. A much lower level than most automatic sump pumps.
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The diaphragm switch on this pump allows it to maintain a lower water level than using a float switch. You can get the water down to 1/2 inch to 1 1/2 inches ("on" level is at 2 to 3 inches).
This 1200 GPH pump features a 1" FNPT discharge with garden hose adapter, 26.3' shut-off head capability, and screened inlet.