NBK 20977 Furnace Pressure Switch 0.70" WC SPST Replaces Nordyne 632624R

The NBK 20977 Furnace Pressure Switch is designed to monitor and control pressure within heating systems. It ensures safe and efficient furnace operation by detecting proper airflow and pressure levels.

• Model: NBK 20977
• Type: Furnace Pressure Switch
• Pressure Rating: 0.70" WC (Water Column)
• Switch Type: SPST (Single Pole Single Throw)
• Replaces: Nordyne 632624R

This is an aftermarket part, not an OEM component. Compatibility may vary depending on the machine's serial number. Please verify fitment before purchase.