Hayward CX250C Star-Clear filter head dome with air relief valveHayward Star-Clear Filter Head (Dome) with Air Relief Valve, CX250C In stock$10399
Hayward CX250C Star-Clear filter head dome with air relief valve
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Hayward Star-Clear Filter Head (Dome) with Air Relief Valve, CX250C

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$10399
In stock
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Quick overview

  • Air relief valve included The dome comes with the air relief valve, so there is nothing extra to buy for the bleed.
  • Star-Clear cartridge filters Listed in the Hayward Star-Clear parts group covering the C-250, C-500, C-750 and C-1000.
  • Genuine Hayward Factory part CX250C, UPC 610377004534.
  • Fixes a cracked dome A hairline crack in the head weeps under pressure and only gets worse with each start.
  • Gasket and knob are separate The head gasket, the lock knob and the knob o-ring are their own Hayward parts.
  • Bleed after every clean The air relief valve on the dome is how trapped air comes out after a cartridge change.
Full description and specifications ↓

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Product details

The Hayward CX250C is the Star-Clear filter head, the dome that closes the top of the cartridge filter tank. It is the genuine Hayward part and comes with the air relief valve already fitted.

What the head does

The dome takes the full working pressure of the filter and holds it against the tank body through the head gasket. The air relief valve mounted on it is what lets trapped air out after the filter has been opened for a cartridge clean.

When to replace it

A crack in the head, however fine, weeps under pressure and grows with every start and stop. If the top of the filter is leaking, replace the head gasket first, since a flat, hardened gasket is the more common cause. If it still leaks or the plastic is visibly cracked, the head itself has to come off.

Before you order

This head is listed under the Hayward Star-Clear parts group covering the C-250, C-500, C-750 and C-1000. Check your filter label and match the part before ordering. The head gasket, lock knob and knob o-ring are separate parts.

Specifications
Brand Hayward
Manufacturer part number CX250C
UPC 610377004534
Type Filter head, dome
Included Air relief valve
Part type Pool filter part
Series Hayward Star-Clear cartridge filters
Parts group C-250, C-500, C-750, C-1000
Shipping weight 1.55 lb
Ships Parcel

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Questions and answers

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

Does the air relief valve come with it?
Yes. The dome is supplied with the air relief valve.
Which filters is this listed for?
It sits in the Hayward Star-Clear parts group that covers the C-250, C-500, C-750 and C-1000. Read the model off your filter label and confirm the head before ordering.
Does it include the gasket and the lock knob?
No. The Star-Clear head gasket, the lock knob and the knob o-ring are separate Hayward parts, and the gasket is worth replacing while the filter is open.
Why is my filter leaking at the top?
Usually either the head gasket has flattened and hardened or the dome itself has cracked. Replace the gasket first; if it still weeps, or you can see a crack, the head is the part to change.
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