This purge pump periodically expels water from the reservoir to prevent mineral buildup in the cooler. Unlike other purge mechanisms， this pump operates directly from the MCP44's/MCP59's electronic control system. Purge systems use much less water than typical bleed-off systems.
Prevents mineral build-up
Keeps media pads clean adding to their life span
Saves on maintenance
Compatible only with MasterCool MCP59， MCP44， MCP44E， WPL44 and WPL44NP evaporative coolers
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