Hayward Universal H-Series 400,000 BTU Heater W3HS400FDP | Propane hayward-max-flo-pump-parts The outer surfaces are textured

The outer surfaces are textured for durability and to retain a finished look

automatically stopping the pump

Unicel C-7451

Wall -154 gallons per minute

Hayward Universal H-Series 400,000 BTU Heater W3HS400FDP | Propane hayward-max-flo-pump-parts The outer surfaces are texturedHayward Universal H Series Heater W3HS400FDP Universal H Series pool and spa gas heaters are engineered for easy drop in replacement, with direct compatibility to Hayward plumbing adapters. At the center is Haywards Universal Display, delivering a consistent, intuitive control experience across Omni, OmniX, and competitive automation systems. With OmniX embedded intelligence, the heater provides enhanced programmability, advanced diagnostics, and