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replacement filter cartridge engineered for Rainbow Dynamic Series IV and Waterway 35 in-line spa filter systems
Brand Equipment Line Model / Part Number Hayward Perflex Extended-Cycle DE Filter 20 Sq
enabling outside air to be piped directly to the heater's combustion air inlet
automatically opening to draw water from the pool floor when surface water flow drops — protecting the pump from running dry
Capacitor Start
Hayward Pressure Switch for FD Heaters | FDXLWPS1930 Pro Series replacement filter cartridge engineered forThe Hayward Pressure Switch (FDXLWPS1930) is the OEM replacement water pressure switch for Hayward FD pool and spa heaters. IMPORTANT: PROFESSIONAL SERVICE REQUIRED Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high voltage components without proper certification. This pressure switch monitors water flow through the heater and signals the control
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