providing a direct-fit solution for furnace repair professionals looking to restore original factory pressure monitoring specifications

depending on the run-time of the blower and the ambient dust load of the environment

63-inch diameter shaft

which allows for rapid access to the 100 mesh stainless steel screen without disturbing pipe connections

This model is technically identical to the TH8321R1001/U

Robertshaw 5500-213M Switch 318973-401 providing a direct-fit solution forThe Robertshaw 5500 213M Infinite Switch is a heavy duty, voltage sensing replacement control engineered for precision management of resistive loads in industrial and commercial heating equipment. As a direct M Series 240V infinite switch upgrade, this unit replaces the discontinued VSI (INF) models and the Robertshaw 5500 213. It features a 22. 5% low end input capability, making it ideal for applications requiring consistent, proportionate heat