Rola Chem Probe Fitting [ORP/PH 1/2"] (550089) is a replacement probe fitting for compatible Rola Chem ORP and pH chemical control systems. This fitting helps create the connection point needed for probe installation, allowing the sensing equipment to interface properly with the plumbing or flow cell setup. A secure, properly matched fitting is important for dependable readings and leak-resistant operation. This 1/2 inch fitting is a useful service part when replacing worn probe hardware, rebuilding a controller installation, or completing a chemical feeder repair. It helps keep the probe positioned correctly so the system can monitor water conditions as intended. Replacement fitting for ORP and pH probe installations Designed for compatible Rola Chem chemical control systems Supports proper probe placement and secure plumbing connection Useful for chemical feeder service, controller repairs, and system maintenance Order by part number 550089 to help verify fitment