Fully adjustable, 5-cycle control delivers upflow back wash, downflow brining, slow rinse, rapid rinse and down flow serviceDesigned for single tank or multi-tank systems, alternating or interlockingContinuous flow rate of 250 GPMProtective NEMA 3R enclosure is water-resistant, corrosion-resistant, and UV stableChoice of 7 or 12 day clock or meter initiated regeneration