First of all, you will need to determine your well flow rate click here > > Determining Your Well Flow Rate. After having established that information, you then can select an appropriate sized filter for your application.
All of our filters show the backwash flow rate of the system.
Never choose a filter that has a backwash equal to or higher than the well flow rate.
Let us help you if you have a specific need application such as an irrigation system (we would need to know the total flow of all heads in all zones as well as the total throughput of water).
