Grundfos Redi-Flo 2 Pump Rental Fits in 2" wells or larger (cooling shroud required for wells > 2") Maximum flow rate of 9 gallons per minute (GPM). 300ft motor length lead. 3/8" or 1/2" barb fitting for tubing connection. Variable Frequency Drive (VFD) controller allows for fine tuning flow speed. NOTICE: Rental rates do not include controller, see accessories area for controller pricing. $85 View Details Quote Request