Castel moisture indicator model 3940/4 with 1/2" ODS solder connections, rated pressure 50 bar (500 psi) and temperature range 40 C to +120 C.
Device for visual monitoring of moisture and refrigerant condition in refrigeration and air conditioning systems.
Suitable for A1 classified refrigerants according to ASHRAE 34: HCFC (R22), HFC (R134a, R404A, R407C, R410A, R507), HFO (R1234ze) and HFO+HFC blends (R448A, R449A, R450A, R452A, R513A, R515A, R515B).
High-strength brass body with shock-resistant glass window and internal color indicator for instant humidity detection.
UL certified component compliant with HVAC and refrigeration safety standards.
Original Castel spare part, made in Italy.