The Star Mfg 2R-Z4819 Knob provides reliable control access, helping operators make precise equipment adjustments with ease. Designed with a black finish and a gold indicator line, this control knob serves as the interface between the user and the equipment’s control mechanism. It works by attaching securely to a compatible control shaft and transmitting rotational movement to adjust ... https://partsfe.ca/knob-for-star-part-2r-z4819