Hayward Z Series Solenoid Diaphragm Metering Pumps brings simplicity to your metering pump needs in all aspects of design, function and performance. The Z Series features only one design configuration, featuring front facing controls and tube connections, allowing for easy and flexible installation. No more reaching over in tight spaces for hookups and connections. Available in analog and digital versions, the Z Series offers just three sizes with flow rates ranging from 1 gph to 29 gph. Additionally, the Z Series offers a stroke rate of 160 to 300 strokes/minute. No need to have multiple makes or models to cover all your application needs.