The blue finish indicates the Maxitrol spring chart specification for mid-range pressure (5-12" WC)

The standard RIBH1C features a NEMA 1 enclosure intended for indoor or plenum-rated applications

this HVAC zone sensor is powered directly through the two-wire connection from the lead unit controller (such as the IMC or M2)

OEM Reliability: Genuine Lochinvar & A

Amana-Goodman 2521302S Heat Exchanger 30067439-890 The blue finish indicates theThe Amana Goodman 2521302S Heat Exchanger is a critical OEM replacement part engineered to restore the heating efficiency and safety of your HVAC system. As a genuine 4 cell heat exchanger, this component is precision manufactured to facilitate optimal thermal transfer within Goodman and Amana gas furnaces. Designed for high performance durability, the 2521302S features robust construction that resists thermal fatigue and corrosive combustion