The WAPC250 is an automatic ON/OFF water removal pool cover pump. Max. flow rate is 3000 gallons per hour using 1-1/4″ drain hose. Includes: Check-valve with 3/4″ garden hose adapter to reduce repetitive cycling, 25 foot power cord (always plug into a GFCI outlet), 25 foot “pull to shore” rope included to help position the pump on the pool cover.