Aquatrol 315 Softener Timer Valves backwash capacity can accommodate tanks up to 60” in diameter. The AQT-315ST-NX also offers a NHWB piston option and has a piston, seal and spacer design. The AQT-315ST-NX also offers a fully adjustable 5 cycle controller that allows you to control the upflow backwash, downflow brining and slow rinse, rapid rinse, timed brine refill and downflow service.


  • 2″ Control valve
  • Lead free brass body
  • Adjustable 5 cycle control
  • Backwash capacity accommodates tanks up to 60″ diameter
  • Side Mount option for 24″- 60″ diameter tanks
  • NHWB option available