this Filter & O-Ring Kit contains the primary filter element and the required O-rings for the canister or housing seal relevant to the specified York model applications

which is standard for many furnace blowers

Precision Monitoring: Features a high-quality thermistor for accurate room temperature sensing

Advanced Diagnostics: Onboard LED status indicators provide real-time feedback for faster troubleshooting of heater faults

Nordyne 904788 Heat Exchanger mario this Filter & O-Ring KitThe Nordyne 904788 Heat Exchanger is an OEM replacement primary heat exchanger engineered specifically for Nordyne gas furnaces and M1 M7 series mobile home furnace units. This critical combustion component is constructed from heavy gauge aluminized steel to ensure superior thermal transfer and resistance to oxidation and corrosion. When diagnosing furnace heat exchanger cracks or rollout switch trips, replacing the 904788 heat exchanger assembly