CAT 4000 pH/ORP Professional Remote Salt Controller Package - Wi-Fi - Gold Tip ORP filter-width_16 1/2 inches 90 inches for the rail

90 inches for the rail tubing and the distance between the front (pool) rail and back (anchor) rail is 40 inches

Smith pool lifts

This number 4

Dynamic DX5 Plus

CAT 4000 pH/ORP Professional Remote Salt Controller Package - Wi-Fi - Gold Tip ORP filter-width_16 1/2 inches 90 inches for the railThe Hayward CAT 4000 WIFIAU Professional Package is a Wi Fi enabled automated salt controller that allows you to monitor and control pH and ORP sanitizer activity remotely. It will constantly adjust the feeding of chemicals proportional to the demand. With additional sensors (sold separately), it can also monitor water level, tank level, and or digital flow. It has a secondary ORP Set Point for backup sanitization. The AU model includes a Gold Tip ORP