The Pentair Fleck 5800 Series of control valves sets a brand new standard for adaptability and innovative features. At the same time, they come from a company known for decades of expertise in the water industry, millions of units in service, and a tradition of rock solid reliability. This combination spells success for residential water conditioning dealers. It brings together the features homeowners prefer with the time-tested component designs professionals can trust for years of customer satisfaction. Excellent service rates (21 GPM and 17 GPM backwash flow rate) Fast positioning reversible 10,000 RPM 12 volt DC drive motor Seal and spacer cartridge for easy servicing LCD – Backlit display that helps during low light conditions Precision cycle positioning using optical sensor Soft water refill for better brine saturation and cleaner brine tank Programming is stored in memory and will not be lost due to power outages Time of day backup for up to 12 hours of power loss Features: Meter initiated. High quality softening resin. Owner's manual included as standard. Specification Approximate GPG Capacity: 32,000 Mineral Tank Size: 9x48 Recommended GPM: 10 Maximum GPM: 21