Pentair Pool Cover Interface Expansion Board | IntelliCenter Control System | 522039Z Check Valves Before installing the new base

Before installing the new base

Automatic Chemical Feeders

Length 23 5/16" Outer Diameter 8 1/2" Top Inner Diameter 4" Bottom Inner Diameter 4" Material 4 oz

or no longer forms a consistent seal against the cleaner's throat plate

with only very few exceptions (molybdenum indicator in liquid form is one

Pentair Pool Cover Interface Expansion Board | IntelliCenter Control System | 522039Z Check Valves Before installing the new baseThe Pentair Pool Cover Interface Expansion Board (522039Z) is the OEM expansion module for the IntelliCenter Control System, adding dedicated pool cover control capability to your automation setup. IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED Electrical control components must be installed or replaced by a qualified electrician or certified pool technician. This expansion board integrates directly into the IntelliCenter Control System to