Emergency Parallel Battery Knob, Yellow Easy FitThis battery knob option for 701 Switches is for applications where emergency parallel switch needs to be highlighted.Order separatelyReplaces existing knobWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.