Hayward CX900H Star Clear Plus locking knob o-ringHayward StarClear Plus Knob O-Ring, CX900H In stock$399
Hayward CX900H Star Clear Plus locking knob o-ring
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Hayward StarClear Plus Knob O-Ring, CX900H

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$399
In stock
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Quick overview

  • Genuine Hayward The factory CX900H o-ring, not a generic ring cut to size.
  • Locking knob seal Seals at the Star Clear Plus locking knob.
  • Five filter models Fits the Hayward C751, C900, C1200, C1750 and C1900 cartridge filters.
  • Rubber Made in rubber, as Hayward specifies for this position.
  • Cheap fix first An o-ring is the first thing to change when the knob area weeps, before suspecting the filter body.
  • Keep a spare Small seals like this are worth having on the shelf before opening the filter for a cleaning.
Full description and specifications ↓

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Product details

The Hayward CX900H is the o-ring for the Star Clear Plus locking knob. It is the genuine Hayward part, made in rubber.

What it fits

Hayward lists it for the Star Clear Plus cartridge filters: C751, C900, C1200, C1750 and C1900.

When to change it

Rubber hardens and takes a set, and once it does the knob area starts to weep. Because the o-ring costs almost nothing, it is the sensible first thing to replace, and a good part to have on hand before you open the filter to clean the cartridge.

Specifications
Brand Hayward
Manufacturer part number CX900H
UPC 610377209298
Part type Pool Filter Part
Type Locking knob o-ring
Material Rubber
Fits Hayward Star Clear Plus C751, C900, C1200, C1750, C1900
Shipping weight 0.02 lb
Ships Parcel

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Questions and answers

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

Which filters does it fit?
Hayward Star Clear Plus cartridge filters: C751, C900, C1200, C1750 and C1900.
Where does this o-ring sit?
At the Star Clear Plus locking knob.
Is it genuine Hayward?
Yes. It is Hayward part CX900H.
What is it made of?
Rubber.
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