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  • Image for Universal HC Series - Dual Fuel 400K (Expert Line) from Hayward Residential and Commercial Pool Products
  • Image for Universal HC Series - Dual Fuel 400K (Expert Line) from Hayward Residential and Commercial Pool Products
  • Image for Universal HC Series - Dual Fuel 400K (Expert Line) from Hayward Residential and Commercial Pool Products
Universal HC Series - Dual Fuel 400K (Expert Line) Item #HDF400
Product Description

EXPERT LINE products are only available through your local pool professional.


The industry’s smallest footprint heater allows replacement of almost any heater in an existing pad with the efficient reliability of the new Universal HC Series dual-fuel technology heater from Hayward®. Built to fit effortlessly with Hayward plumbing adapters, every detail has been thoughtfully engineered with easy drop-in capability in mind—its dual-fuel technology, its adaptive plumbing, its zero wall-clearance design, and more. And it all adds up to a durable, ultra-powerful heater with the industry’s smallest footprint.


  • Compact design: The industry’s smallest footprint heater and lightweight design makes installation easy in any environment
  • Easy-out mixing orifice: Allows for easy in-field conversion between natural gas and propane
  • Cupro nickel heat exchanger: Protects against water corrosion and natural wear
  • Patented Butterfly bypass: Enables flow rates up to 125 GPM without extra accessories
  • Exclusive plumbing adapters: Allow for simple drop-in replacement with no pipe cutting required
  • Zero wall clearance: Fits seamlessly into smaller pads and tight spaces
  • Quick-access reversible top: easily swaps plumbing from right to left while providing access to gas shutoff, voltage selection and more, all via a single fastener
  • Low NOx emissions: Meet clean air quality standards while providing premium heating performance.

Hayward, Hayward & Design and the H logo are registered trademarks of Hayward Industries, Inc.

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Ctn. Qty.
1
Ctn. Weight
170.0 lbs.

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Universal HC Series

HDF400   Universal HC Series - Dual Fuel 400K (Expert Line) Replacement Parts