While some aftermarket filters claim higher MERV ratings

Smith 100157702 Control is a critical outdoor air reset control designed to optimize the performance of hydronic heating systems

Built by Advanced Distributor Products (ADP)

For contractors performing a furnace heat exchanger replacement

For water or air applications

Gates 4L450 Belt R-407C While some aftermarket filters claimThe Gates 4L450 Belt is a heavy duty Fractional Horsepower (FHP) V Belt engineered for high demand HVACR equipment. This Truflex V Belt features a 1 2 inch top width and a 45 inch outside diameter, making it a standard solution for light duty blowers, fans, and pump drives. Built with flex bonded cords, the belt ensures uniform load distribution and resists bending stress, which is critical when navigating the small diameter sheaves often found in