Armstrong Fluid Technology 816665-000 Coupler 321042-401 but they must be connected

but they must be connected via the Wireless Interface 2 (PAC-USWHS002-WF-2)

Precision Dual-Stage Monitoring: Specifically calibrated with 0

making it the primary solution for Carrier 310553-751 replacement needs

Built as a direct replacement for the 45GG20AJ

providing the necessary torque for residential blower systems

Armstrong Fluid Technology 816665-000 Coupler 321042-401 but they must be connectedOptimize your HVACR system's performance with the Armstrong Fluid Technology 816665 000 Coupler. This high quality sleeve type coupler assembly is a critical OEM replacement part designed for seamless torque transfer between the motor and pump shaft. Engineered specifically for Armstrong Series 1060 and S&H Series circulator pumps, this 5 8" x 5 8" coupler ensures a vibration free connection that extends the operational life of your equipment. Built