Fleck 5600 SXT Valve combine rugged, glass-reinforced Noryl construction with modular design which makes disassembly quick and easy. Seven cycles with adjustable brine flow is efficient and reliable. 48 Hour power backup. Flow rates up to 20 gpm. Backwash capacity handles up to 13" diameter softeners with on demand regeneration. Bypass sold separately. This is the top powerhead portion of the metered control valve only. Does not include valve body.