Hayward SX220Z2 2-1/2 in. bulkhead and diffuser o-ringHayward OEM O-Ring, 2-1/2", SX220Z2 In stock$2399
Hayward SX220Z2 2-1/2 in. bulkhead and diffuser o-ring
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Hayward OEM O-Ring, 2-1/2", SX220Z2

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$2399
In stock
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Quick overview

  • 2-1/2 in. ID, 3/16 in. section measure your old ring against these two numbers.
  • One ring, two jobs the diffuser o-ring on Max-Flo II and Max-Flo XL pumps, and the bulkhead o-ring on SwimClear cartridge and Pro-Grid DE filters.
  • SwimClear C2020, C2025, C3020, C3025, C4020, C4025, C5020, C5025, C5520, C7000 and the C2030 through C7030 series.
  • Pro-Grid DE2420, DE3620, DE4820, DE6020 and DE7220.
  • Genuine Hayward SX220Z2, the OEM part sized to Hayward's spec.
  • Losing prime? a flattened diffuser o-ring lets water bypass the impeller and costs you prime and flow.
Full description and specifications ↓

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Product details

The Hayward SX220Z2 is a 2-1/2 in. inside diameter o-ring with a 3/16 in. cross section. Hayward uses the same ring in two places: as the diffuser o-ring on Max-Flo II and Max-Flo XL pumps, and as the bulkhead o-ring on SwimClear cartridge filters and Pro-Grid DE filters.

On the pump

The diffuser o-ring seals the diffuser to the seal plate. When it flattens or cracks, water recirculates inside the wet end instead of being pushed to the filter, and the symptoms are slow priming, weak flow and a pump that never quite fills the strainer lid.

On the filter

As a bulkhead o-ring it seals the fitting where the plumbing passes through the tank. It covers the SwimClear C2020, C2025, C3020, C3025, C4020, C4025, C5020, C5025, C5520 and C7000, the C2030 through C7030 series, and the Pro-Grid DE2420, DE3620, DE4820, DE6020 and DE7220.

Before you order

Measure the old ring. 2-1/2 in. across the inside and 3/16 in. thick is this part. Fit it with a light film of silicone o-ring lubricant.

Specifications
Brand Hayward
Manufacturer part number SX220Z2
UPC 610377055048
Inside diameter 2-1/2 in.
Cross section 3/16 in.
Use Bulkhead o-ring, diffuser o-ring
Fits pumps Hayward Max-Flo II, Max-Flo XL
Fits filters Hayward SwimClear C2020, C2025, C3020, C3025, C4020, C4025, C5020, C5025, C5520, C7000, C2030, C3030, C4030, C5030, C7030; Pro-Grid DE2420, DE3620, DE4820, DE6020, DE7220
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.

What size is it?
2-1/2 in. inside diameter with a 3/16 in. cross section.
Where is it used on a Max-Flo pump?
It is the diffuser o-ring on the Max-Flo II and Max-Flo XL, sealing the diffuser against the seal plate so water goes through the impeller instead of around it.
Where is it used on a SwimClear or Pro-Grid filter?
It is the bulkhead o-ring, sealing the bulkhead fitting where the plumbing passes through the tank wall.
Should I lubricate it?
A light coat of silicone based o-ring lubricant helps it seat and slows drying out. Keep petroleum products off it.
Ask your own question