Littelfuse Model ALT-230-S-SW Alternating Duplex Pump Relay with Switch 95-125V 8-pin Plug-in Manufacturers__Franklin Electric__Submersible Pump Ends__Tri-Seal Pump Ends__15 GPM McDonald DuraMAC 5033CVSPEZ Sump Pump

McDonald DuraMAC 5033CVSPEZ Sump Pump can handle up to 60 gallons per minute and has a rugged cast iron pump construction and a plastic base

contactors

Zoeller Model E161 High Head Effluent Pump Description

The PumpSaver®Plus Model 233P protects 230 volt

3/10 HP N57 is the industry standard when it comes to cast iron sump pumps

Littelfuse Model ALT-230-S-SW Alternating Duplex Pump Relay with Switch 95-125V 8-pin Plug-in Manufacturers__Franklin Electric__Submersible Pump Ends__Tri-Seal Pump Ends__15 GPM McDonald DuraMAC 5033CVSPEZ Sump PumpLittelfuse ALT 230 S SW Alternating Duplex Pump Relay With Switch Product Description Model ALT 230 S SW alternating relays are used to alternate between two loads. The ALT is commonly used in duplex pumping applications to balance the runtime of both pumps. The Model ALT S is used in single high level float applications. When the float switch opens, the alternating relay changes state forcing the other pump to run the next time the float closes