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Rola-Chem 550089 Probe Replacement Gland Fitting – 1/2" x 3/8" MPT for Flow Cells

The Rola-Chem 550089 Probe Gland Fitting is a direct OEM replacement part designed for securing pH or ORP probes in Rola-Chem flow cells. This fitting features a 1/2-inch male pipe thread (MPT) connection on one end and a 3/8-inch compression fitting on the other, ensuring a watertight seal around the probe body while allowing for safe inline monitoring.

Whether you're maintaining a chemical feed system or upgrading your controller installation, the 550089 provides a reliable, chemical-resistant connection point for sensor probes in high-demand pool and spa environments. Its precision fit minimizes leaks, extends sensor life, and supports consistent water chemistry monitoring.