Vacuum Switch Kit - Hayward NBK-20410K

Vacuum Switch Kit Ensure proper safety and airflow monitoring with this replacement vacuum switch kit, equivalent to Hayward OEM part FDXLBVS1930. Designed for compatible Hayward pool heater systems, this component helps verify correct draft and venting conditions during operation. Key Features Equivalent to Hayward OEM vacuum switch kit Supports proper airflow and draft verification Direct-fit replacement for Hayward part number FDXLBVS1930 Helps maintain safe and reliable heater operation Specifications OEM: Hayward Replaces OEM: FDXLBVS1930 Equivalent To: FDXLBVS1930 UPC: Not available SKU: 20410K Category: Pool Parts (Miscellaneous) Direct Replacement For HAYWARD FDXLBVS1930 Why Choose This Replacement A faulty vacuum switch can interrupt heater operation or compromise system safety. This OEM-equivalent replacement kit is designed to restore proper airflow sensing and ensure dependable performance in Hayward pool heater applications. Installation Tips Disconnect electrical power and shut off gas supply before servicing heater components. Confirm compatibility with your Hayward heater model prior to installation. Inspect tubing and vent connections for blockages or wear during replacement. Ensure secure hose connections to prevent air leaks. Test heater startup sequence to verify proper vacuum switch operation. Pairs Well With Hayward pressure switches, pool heater control boards, venting components, heater maintenance service kits Special Order Notice: This item requires an additional 2–3 business days to process before shipping.