This is an official OEM part for York and Johnson Controls equipment

Reduced Operational Noise: Advanced motor logic ensures soft-start and ramp-down profiles to minimize duct vibrations

the T-4100-2 features a 55 to 85 degree Fahrenheit dial range and is optimized for systems requiring a 13 to 25 psig supply pressure

The unit features a standard 48-frame motor diameter and CCW rotation (counter-clockwise) from the lead end

The Resideo L4081A1023 Aquastat Controller is a professional-grade high and low limit boiler control engineered for hydronic systems requiring integrated dual-function thermal regulation

Honeywell MN7505A2001 Actuator 320788-704 This is an official OEMThe Honeywell MN7505A2001 is a non spring return direct coupled actuator engineered for precise control in HVAC zoning and VAV systems. This 24VAC DC unit delivers 44 lb in torque, utilizing a brushless DC motor with a magnetic clutch to eliminate the need for limit switches while protecting against mechanical stalls. Designed for high performance building automation systems, it supports 0 2 10Vdc modulating, 4 20mA (with 500 Ohm resistor), and