Johnson Controls T-4000-119 Tool the brass construction and SAE

the brass construction and SAE J513 compliance make this 3/8 flare x 3/8 MPT brass adapter compatible with modern A2L refrigerant systems and standard mineral or synthetic oils

For 8-pin (2-pole) RR series relays

Repeated tripping is usually indicative of restricted airflow

the 4520-2030-000 is a reliable solution for over-temperature protection in commercial and residential heating applications

allowing for a quick swap during service calls

Johnson Controls T-4000-119 Tool the brass construction and SAEFor service technicians managing legacy pneumatic systems, the Johnson Controls T 4000 119 is the standard Allen head adjustment tool required for the precise calibration and maintenance of T 4000 series pneumatic thermostats. This specialized tool features a hardened Allen head tip specifically machined to engage with the setpoint adjustment screws and cover mounting hardware on Johnson Controls pneumatic controllers. Unlike standard hardware store