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Maintains proper water flow by preserving a tight seal in the tank interface
Its compact form factor supports straightforward field replacement
Performance and compatibility: what to expect
built-in gourmet grill head with factory-installed one-hour FuelStop® gas timer
For compatible Hayward slide or push pull valves
Hayward Blower Vacuum Switch | FDXLBVS1930 AquaChek Maintains proper water flow byWhat This Part Is Used For The Hayward FDXLBVS1930 Blower Vacuum Switch is used in FD series pool heaters to control the blower's operation by monitoring pressure levels. Why This Part Matters A faulty vacuum switch can cause erratic blower behavior or prevent ignition, impacting heater efficiency. Replacing the switch ensures proper blower control and reliable heater performance. Key Features and Specifications Genuine Hayward replacement part