Hayward Universal H-Series Low NOx 400.000 BTU Natural Gas Swimming Pool and Spa Heater W3H400FDN
W3H400FDN is the online version of H400FDN heater which is a Expert Line product and is sold only in brick and mortar stores.
- Totally Managed Flow for salt-water pools
- Finn Plate heat exchanger
- Fire Tile for trapping heat
- Silicon nitride ignition system
- 110V or 220V
- High and low voltage connections
- Digital LED display
- Low NOx certification
- Cupro-Nickel Heat Exchanger ensures compatibility with almost all pools
- 83-84% industry-leading thermal efficiency
- Choice of left-side or right-side electric, gas and water connections (delivered right-side by default)
- 3/4″ Gas Connection at heater
- 2″ or 2-1/2″ Plumbing Connections
- Dimension 36″ Width x 30″ Depth x 24″ Height
WARNING: Product(s) shown and sold in the website and in store can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
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