WS20QC-AF36, =Nelsen 36 x 72 Filter Unit,

Includes the Clack WS2EE or WS2QC 2” control valve with 6 fully adjustable cycles. Optional double backwash feature offers optimum regeneration, cleaning ability and efficiency. Also included are commercial distributors and gravel bed; choose from a variety of filter media.

• 2” Top mount control valve suited for commercial/industrial applications • Lead free brass construction • Service flow rate of 125 gpm, backwash 85 gpm • Solid state microprocessor with easy access front panel settings • Front panel display for time of day, days until next regeneration, volume remaining, current flow rate and total volume used (Totalizer) • Methods of regeneration: meter immediate, meter delayed, time clock delayed • Optional double backwash feature offers optimum regeneration, cleaning ability and efficiency • Fully adjustable cycle times with 6-cycle control delivers controlled backwash, down-flow brining/slow rinse, second backwash, fast rinse, refill and down-flow service • Coin Cell Lithium battery back-up with an 8 hour carry over • 12-volt AC Adapter, safe & easy installation • Post treated water regenerant refill