TIP FILTER FOR DR58, FIEDLPIECE RFT6 TIP FILTERS FOR FIELDPIECE DR LEAK DETECTOR

RFT6 - Replacement Filtered Tips for Fieldpiece DR Refrigerant Leak Detectors  Fieldpiece filters and O-rings are designed to help protect your refrigerant leak detector sensor and keep it working properly.
When the filter swells up and blocks water and other contaminants from reaching the sensor, it's done its job, and it's time for a replacement.