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Derale 16789 High Amperage Adjustable Dual Electric Fan Controller, 3/8:
$210.20
Features Adjustable turn-on temperature from 160-240F; Rated at a maximum 35 amps per fan; Activates fan #1 at adjusted temperature; Activates fan #2 at 10F warmer than fan #1; Turn-off temperatures are preset at 15F below turn-on temperatures; Die cast aluminum housing; AC override circuit included; Thread-in 3/8" NPT probe;
