specifically the B1-RS model

Universal Replacement: Specifically designed to replace legacy M573-3007 and M573-3104 models

While it is a "drop-in" replacement for supported 1/2 HP models

6KW Electric Heater designed for integration into York air handlers and residential forced-air systems

How do I confirm this fits my specific air handler

York S1-028-17061-001 Gasket 324846-701 specifically the B1-RS modelThe York S1 028 17061 001 is a commercial grade closed cell foam gasket engineered for high performance sealing in HVACR applications. Measuring 5 8" wide by 1 8" thick, this 50 foot roll is a critical component for maintaining system pressure and preventing air bypass in air handlers, furnace cabinets, and rooftop units. As an OEM York replacement part, it ensures precise fitment where generic weatherstripping fails, particularly in high vibration