Hayward OEM Valve Union O-Ring, 2 Pack In stock$18⁹⁹

Hayward SX200Z4PAK2 valve and union o-ring, 2 pack

Hayward OEM Valve Union O-Ring, 2 Pack

Name: Hayward OEM Valve Union O-Ring, 2 Pack
Brand: Hayward
SKU: HAY-051-2253
Price: 18.99 USD
Availability: InStock

Ask a questionAPS # HAY-051-2253

In stock

$18⁹⁹

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Quick overview

Two per pack Supplied as a 2 pack, enough for both ends of a union or one fitted and one on the shelf.
Genuine Hayward Factory o-ring, part number SX200Z4PAK2.
Valve and union duty The seal Hayward specifies at the valve and union joints on these filters.
Wide filter coverage Listed for the Super StarClear cartridge filter, ProGrid and MicroClear vertical grid DE filters, ProSeries Plus and ProSeries sand filters.
Where the drips start Union o-rings harden and take a set, then weep every time the pump comes on.
Lubricate on fit Seat it clean and lightly lubricated so it does not roll or pinch as the union tightens.

Full description and specifications ↓

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Product details

The Hayward SX200Z4PAK2 is a two pack of valve and union o-rings used across several Hayward filter families. They are the genuine Hayward parts.

Which filters

Hayward lists this o-ring for the Super StarClear cartridge filter, the ProGrid and MicroClear vertical grid DE filters, ProSeries Plus, and ProSeries sand filters. Two come in the pack, which is useful because unions seal at each end and a spare on the shelf saves a second trip.

Why they leak

Union and valve o-rings sit compressed for years. The rubber hardens, takes a permanent set in the shape of the groove, and stops following the joint as it flexes. The result is a fitting that looks dry at rest and weeps the moment the pump starts and pressure comes up.

Fitting

Shut the system down and relieve pressure first. Clean the groove, check the sealing face for scoring, and seat the new o-ring lightly lubricated so it does not roll or pinch as the union is tightened.

Specifications
Brand	Hayward
Manufacturer part number	SX200Z4PAK2
UPC	610377243063
Type	Valve and union o-ring
Quantity	2 pack
Fits	Hayward Super StarClear cartridge filter, ProGrid and MicroClear vertical grid DE filters, ProSeries Plus, ProSeries sand filters
Shipping weight	0.03 lb
Ships	Parcel

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Questions and answers

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

How many o-rings are in the pack?

Two.

Which filters use it?

Hayward lists it for the Super StarClear cartridge filter, ProGrid and MicroClear vertical grid DE filters, ProSeries Plus, and ProSeries sand filters.

Is it for the valve or the union?

Both. Hayward lists it as the valve and union o-ring for these filters.

My union drips when the pump starts. Is this the fix?

Usually. Shut the pump down, relieve pressure, break the union and look at the o-ring for flattening, cracks or a glazed surface. A hardened seal cannot follow the joint and it weeps under pressure.

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