Made in USA, with industry-leading cell lifespan and unmatched 5-Year Limited Warranty.. Reverse Polarity Self-Cleaning Cell, Maintains pool to up to 55,000 gallons max under ideal conditions. Monitors performance & salinity level - works on the widest available salinity range.. Easy DIY installation with no warranty penalty.Vector Jet maximizes effectiveness.. No other salt system is as durable, user-friendly, and easy to operate.