NBK 21091 Blower Limit Switch For QuadraFire 812-0320 SRV230-0060

The NBK 21091 Blower Limit Switch is a replacement part designed to regulate the blower operation in heating systems. It helps maintain safe temperature levels by controlling the blower fan based on heat output.

• Model: NBK 21091
• Function: Blower limit switch for temperature control
• Compatible with: QuadraFire heating systems
• Part numbers: 812-0320, SRV230-0060
• Application: Controls blower fan activation and safety shutoff

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