Planned downtime: Please be aware that our website will be temporarily unavailable on 9/5/2025 starting at 9:00PM EDT, and will last approximately 12 hours. We apologize for any inconvenience. Dismiss
menu
phone_in_talk (800) 482-4894
schedule M-F 7:30AM - 5:00PM EST
 
Search
arrow_back
 
 
close
main product photo
THM5421R1021/U
Equipment Interface Module
by
done_outline8888 in stock
addShow Locations removeHide Locations
Gas, Oil, Electric, Heat Pump, Forced Warm Air, Hot Water, Steam Or Gravity Application, Up To 4 Heat 2 Cool Heat Pump Or Up To 3 Heat 2 Cool Conventional Stages, For Use With Prestige IAQ And VisionPRO 8000 With RedLINK.