Johnson Controllers Temperature Controller A19AAF-21C Remote Bulb, SPDT, Heat & Cool

Johnson controllers mechanical temperature controller a19aaf-21c remote bulb, spdt, heat & cool the a19 series mechanical controls are single-stage temperature controls that incorporate environmentally friendly liquid-filled sensing elements. features: wide temperature ranges availableconstant differential throughout the entire range compact enclosurefixed or adjustable differential availablevariety of sensing element stylesunaffected by cross-ambient conditions