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Ships within 48 hours · Estimated delivery Sep 17 - Sep 22
101" port size
and leakage over time
this is the Factory Authorized OEM replacement
Durable Construction: Heavy-duty steel body with copper connections for reliable brazing/mating and corrosion resistance
Why is my boiler throwing a "Blocked Drain" error
Armstrong Fluid Technology 816665-000 Coupler 320819-301 101" port sizeOptimize 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
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