Use MSVAR to control the water flow on our Variable speed Pumps. This will save energy by decreasing the flow and wattage while you are away. Has a timer and flow control feature Remote works up to 100 feet away. works through walls and windows. Works with Flood Pumps, Big Frog Eco Drive 3000 - 5500 and Monsoon MS-550 - MS-6100 models. CANNOT Be used With Monsoon MS-8000, MS-10000, MS-12500 Use MSVAR to control the water flow on our Variable Speed Pumps. This will save energy by decreasing the flow and wattage while you are away. It has a timer and flow control feature. Remote works up to 100 feet away. Works through walls and windows. Works with Flood Pumps, Big Frog Eco Drive 3000 - 5500, and MS-550 - MS-6100. Cannot be used with MS-8000, MS-10000, MS-12500