PD-9A Polarity Checker Phase Detector Self-Test Auto-Off Audio Speaker Testing $45.00
IndusTec Toggle Switch 3 - Pos DPDT Reverse Polarity Switch 12v Momentary Reset $14.99
IndusTec DPDT 20 AMP - 6 PIN Maintained 3 Position Rocker Switch polarity 12V DC $7.29
IndusTec Motor polarity reversing - Toggle Switch 3 Pos DPDT Momentary 12V 24V $14.99
Industec Motor Polarity Reversing Momentary Switch DPDT 12V 24V 20AMPS SEE VIDEO $9.29
Honeywell Quartz Polarity Sensitive Hour Meter 85098 $79.99
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