quick view Choose Options Zytron Control Products, Inc. Zytron Direct Replacement for OEM 120R-7-Z128-156 MSRP: $290.00 Looking to buy in bulk? Click HERE DESCRIPTION The Series 120R is a low cost, panel mounting electronic temperature controller with integral set point potentiometer. OEM REPLACEMENT Choose Options Add to Wish List Add to My Wish List Create New Wish List Compare