Hayward Pressure Switch for FD Heaters | FDXLWPS1930 Pro Series The PS-3868 features Viton® elastomers

The PS-3868 features Viton® elastomers that deliver exceptional resistance to salt chlorine generators and ozone systems compared to standard Buna seals

so they can be hung in parallel

System:2 Modular D

Made from durable PVC

automatically opening to draw water from the pool floor when surface water flow drops — protecting the pump from running dry

Hayward Pressure Switch for FD Heaters | FDXLWPS1930 Pro Series The PS-3868 features Viton® elastomersThe 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