Hayward FDXLGSK1933 return side tube sheet insulation kit for H-Series heatersHayward Return Side Tube Sheet Insulation Kit for H-Series Heaters, FDXLGSK1933$6199
Hayward FDXLGSK1933 return side tube sheet insulation kit for H-Series heaters
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Hayward Return Side Tube Sheet Insulation Kit for H-Series Heaters, FDXLGSK1933

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$6199
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Quick overview

  • Return side This is the return side kit. The air side and front air box kits for these heaters are separate parts.
  • For H-Series heaters Specified for the Hayward H-Series line.
  • Tube sheet insulation Protects the tube sheet area from the direct heat of the combustion chamber.
  • Supplied as a kit Comes as a kit rather than as a single loose piece of insulation.
  • Genuine Hayward Part FDXLGSK1933, ordered by the manufacturer number.
  • Replace insulation when you open the heater Old insulation crumbles once it is disturbed, so plan on fitting new rather than reusing what comes out.
Full description and specifications ↓

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Product details

Hayward FDXLGSK1933 is the return side tube sheet insulation kit for H-Series pool heaters.

What it does

The tube sheet is where the heat exchanger meets the header, and the insulation at that joint shields the assembly from the full heat of the combustion chamber. Over years of firing cycles the material bakes, hardens and eventually breaks down. Once it does, heat reaches parts that were never meant to see it directly, and the damage accumulates quietly until something more expensive fails.

Doing the job

This kit covers the return side only. Hayward supplies the air side and the front air box as separate kits, so identify which one is in front of you before ordering. Old insulation almost never survives being removed, so buy the replacement before you open the heater rather than discovering mid job that the original has crumbled.

Specifications
Brand Hayward
Manufacturer part number FDXLGSK1933
UPC 610377072953
Type Tube sheet insulation kit
Position Return side
Fits Hayward H-Series heaters
Shipping weight 2 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

Which side of the heater is this for?
The return side. Hayward sells separate kits for the air side and for the front air box, so check which one you are replacing.
Which heaters does it fit?
The Hayward H-Series heaters.
Is this a genuine Hayward part?
Yes, part number FDXLGSK1933.
Can I reuse the old insulation?
It rarely survives removal. Heat cycling makes it brittle, and it usually breaks up as soon as the heat exchanger is lifted, which is why these kits exist.
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