replacing the complete three-piece assembly (both flanges and the sleeve) ensures that worn set-screw holes or flange burrs do not lead to a repeat failure

As a genuine furnace collector box gasket

you mitigate the risk of uneven evaporator feeding

or ceiling-recessed units

International Environmental 70300238 Heater Element 318172-701 replacing the complete three-piece assemblyThe International Environmental 70300238 Heater Element is a critical OEM replacement part designed specifically for Series M and Y fan coil units and compatible HVAC air handler units. Engineering a reliable thermal solution, this 277V 1. 5KW electric heater element provides consistent 5. 4 Amp resistance heating to ensure architectural comfort in demanding commercial environments. As a veteran grade fan coil unit heater assembly, it features a