Replacement brush components for the FR-300 Plus Self-Brushing Flow Reservoir, designed to maintain proper mechanical cleaning performance and ensure continued measurement reliability of the ST-765SS sensor.

This product is available in two configurations:

• FRP-300-1 – Complete Magnetic Brush Assembly

  Includes both the cleaning brush and threaded magnetic mount for full assembly replacement.

• FR-300-04 – Brush Only

  Replacement brush element designed to thread onto an existing magnetic mount. Ideal when the magnet assembly remains intact and reusable.

Regular inspection and timely replacement of worn brush components help prevent fouling buildup and maintain optimal sensor performance.