Our tried and trusted Bell & Gossett Series 60 pumps are available with highly efficient optional ECM motors as stock part numbers. These variable speed motors with motor mounted interface adjust motor speed to match flow and head requirements, thus substantially reducing power consumption. The user interface allows for manual adjustment or remote control via 10 VDC input/output. Series 60 pumps with ECM motors are not only more efficient than their standard induction motor counterparts, they are quieter, vibrate less, and have a lower total lifetime cost of ownership.