Replacement one-piece stem and control knob for our NEW 0-14mm drain valve. Available with either a red indicator band used for high temperature applications up to 230°C, or with a blue indicator band used for low temperature applications down to -60°C. The high temperature plug uses Perfluoro o-rings on shaft and tip, while the low temperature plug uses Perfluoro o-rings on shaft and a FEP-Silicone o-ring on the tip.