Hayward DEX2400CR auto air relief assembly for Pro-Grid and Micro-Clear DE filtersHayward Auto Air Relief Assembly, DEX2400CR In stock$3499
Hayward DEX2400CR auto air relief assembly for Pro-Grid and Micro-Clear DE filters
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Hayward Auto Air Relief Assembly, DEX2400CR

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$3499
In stock
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Quick overview

  • Genuine Hayward The factory flex air relief replacement, part DEX2400CR.
  • Fits Pro-Grid DE filters Models DE2420, DE3620, DE4820, DE6020 and DE7220.
  • Also for Micro-Clear Used on Hayward Micro-Clear DE filters, including the stainless steel versions.
  • Vents trapped air Lets air out of the top of the tank so the filter fills with water instead of holding a pocket.
  • Flex tube design The flexible tube reaches the top of the tank where the air collects.
  • Complete assembly Supplied as an assembly, so the whole relief comes out and the new one goes in.
Full description and specifications ↓

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Product details

The Hayward DEX2400CR is the genuine flex auto air relief assembly for Hayward DE filters. It fits the Pro-Grid models DE2420, DE3620, DE4820, DE6020 and DE7220, and the Micro-Clear DE filters including the stainless steel versions.

What it does

Water carries air into the filter, and that air rises to the top of the tank. The air relief gives it a way out. If the air stays in, the tank runs with a pocket above the water, the grids do less work than they should and the pressure gauge stops telling you much about the filter.

The flex tube

The assembly uses a flexible tube that reaches the highest point inside the tank, which is where the air collects. That is what lets it purge properly rather than venting only when the level happens to be right.

When to replace it

Swap the assembly when it drips at the relief, sticks shut, or stops purging air on start up. It comes as a complete assembly, so the old one comes out and the new one goes in as a unit.

Specifications
Brand Hayward
Manufacturer part number DEX2400CR
UPC 610377020893
Type Auto air relief assembly
Part type Pool filter part
Design Flex air relief
Fits Hayward Pro-Grid DE filters DE2420, DE3620, DE4820, DE6020, DE7220; Hayward Micro-Clear DE filters, including stainless steel models
Shipping weight 0.05 lb
Ships Parcel

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Questions and answers

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

Which filters does this fit?
Hayward Pro-Grid DE filters DE2420, DE3620, DE4820, DE6020 and DE7220, and Hayward Micro-Clear DE filters including the stainless steel versions.
What does the air relief actually do?
It vents air out of the top of the filter tank. Air trapped above the water cushions the tank, drops filtering area and can push the pressure reading around.
Is this the genuine Hayward part?
Yes. It is Hayward DEX2400CR, the factory flex air relief.
Mine leaks or will not release air. Is replacement the answer?
If the relief drips, sticks shut or no longer purges air when the pump starts, the assembly is worn and swapping it is the normal repair.
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