WS20EE-AF18, =Nelsen 18 x 65 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