Hayward Universal H-Series 400,000 BTU Natural Gas Low NOx Pool Heater with OmniX | W3HS400FDN Color LED Pool Lights Simple replacement process ensures safe

Simple replacement process ensures safe operation

and ensure weather-proof cover sealing

just add to your pool water for long-lasting protection against metal-related issues

and coreless cartridge for easy maintenance

Hayward Universal H-Series 400,000 BTU Natural Gas Low NOx Pool Heater with OmniX | W3HS400FDN Color LED Pool Lights Simple replacement process ensures safeHayward Universal H Series 400,000 BTU Natural Gas Low NOx Pool Heater with OmniX W3HS400FDN Heat your pool quickly and efficiently with the Hayward Universal H Series W3HS400FDN. Featuring 400,000 BTUs of natural gas heating power, OmniX smart controls, and a premium cupro nickel heat exchanger, this heater delivers dependable comfort for residential pools and spas. Features 400,000 BTU natural gas heater. Integrated OmniX universal controls. Cupro