The two-window configuration allows technicians and facility managers to monitor dual-scale displays or multiple control points simultaneously while the locking mechanism ensures tamper-resistant HVAC control

This valve features a 3/8 inch ODF inlet and a 1/2 inch ODF outlet designed for standard copper tubing brazing

This SPST normally closed switch is a standard requirement for technicians performing furnace limit control replacement

the R40154B010 (functionally identical to 40154B-010) prevents the heat exchanger from reaching critical temperatures by interrupting the burner circuit when airflow is restricted

Honeywell 28600 Filter 30067439-890 The two-window configuration allows techniciansHoneywell 28600 99. 97 HEPA Filter 300CFM W O CPZ