Hayward OmniX Universal H-Series Propane Gas 400,000 BTU Low NOx - W3HS400FDP
The Hayward OmniX Universal H-Series Propane Gas 400,000 BTU Low NOx is part number 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 Hayward’s 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 seamless remote connectivity.
Features
- Cupro-nickel heat exchanger protects against corrosion and premature wear
- Totally managed water flow boasts industry-leading hydraulic performance
- Low NOx emissions meet clean air quality standards
- Front panel only access provides easy service and maintenance
- Universal junction box allows either left or right electrical installation
- Plug-in 120 volt electric cord for easy installation
Specifications
- Brand: Hayward
- Part Number: W3HS400FDP
- Phase: Single-phase
- Application: Commercial
Please confirm the part number matches your existing equipment before ordering.
GTIN: 0610377469258
SKU: W3HS400FDP
Brand: Hayward
In stock
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Sale price
$5,399.00
Tax & Shipping calculated at checkout*
Est. 7-10 business days for freight delivery.
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Free Shipping On orders over $100
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30-Day Returns Easy return policy
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Warranty Manufacturer warranty included

Key Features
- Cupro-nickel heat exchanger protects against corrosion and premature wear
- Totally managed water flow boasts industry-leading hydraulic performance
- Low NOx emissions meet clean air quality standards
- Front panel only access provides easy service and maintenance
- Universal junction box allows either left or right electrical installation
- Plug-in 120 volt electric cord for easy installation