Always match the RPM rating of the original equipment to ensure proper airflow and prevent compressor head pressure issues

ensure your tubing and distal connections are rated for the specific thermal load of your system

while the 5/16" x 8-1/2" nickel-plated curved bulb and 3/8" stuffing box ensure robust thermal sensing and secure mounting

ensuring compatibility with most industrial power configurations

Armstrong Fluid Technology 880202-677K Seal Kit 318423-701 Always match the RPM ratingThe Armstrong Fluid Technology 880202 677K Seal Kit is a precision engineered mechanical seal replacement designed specifically for the E2 Series circulator pumps. This comprehensive kit ensures a leak free environment by utilizing high grade EPDM gaskets and a durable rotating seal assembly. As an essential HVAC pump repair kit, it addresses common points of failure in hydronic heating and cooling systems, restoring hydraulic integrity and preventing