Hayward SX360Z1 bulkhead o-ring for Pro Series, MicroClear and Super StarClear filtersHayward Bulkhead O-Ring (After 1996), SX360Z1 In stock$2099
Hayward SX360Z1 bulkhead o-ring for Pro Series, MicroClear and Super StarClear filters
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Hayward Bulkhead O-Ring (After 1996), SX360Z1

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$2099
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Quick overview

  • Exact size 3-1/8 in. outside diameter, 2-3/4 in. inside diameter, 3/16 in. thick.
  • Fits three filter families Pro Series and Pro Series Plus sand, MicroClear vertical grid DE, and Super StarClear cartridge filters.
  • After 1996 The bulkhead o-ring for filters built after 1996.
  • Seals the bulkhead Sits between the bulkhead fitting and the tank to stop leaks at the connection.
  • Also called diffuser or union o-ring The same ring is listed under those names on Hayward DE filters.
  • Genuine Hayward Part SX360Z1, also shown as 20-SX360Z1.
Full description and specifications ↓

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Product details

The Hayward SX360Z1 is the bulkhead o-ring for Hayward filters built after 1996. It is the genuine Hayward part, and it is also listed as 20-SX360Z1 and, on DE filters, as the diffuser o-ring or union o-ring.

Size

Outside diameter 3-1/8 in., inside diameter 2-3/4 in., thickness 3/16 in. Measure the old ring if you are unsure; a ring that has taken a set will read a little larger and thinner than these figures.

Which filters

Pro Series side mount sand filters S210S, S220S, S244S, S310S and S360S; Pro Series Plus S311SX, S311SXV and S360SX; MicroClear vertical grid DE filters DE2400, DE3600, DE4800 and DE6000; and Super StarClear cartridge filters C2000, C3000, C4000, C4500, C5000 and C5500.

What it does

An o-ring is a simple circular gasket that seals two parts against each other. Here it seals the bulkhead fitting to the tank. When it ages it hardens and flattens, and the connection starts to weep. A new ring is the fix, and the bulkhead fitting and spacer are separate parts if those turn out to be the problem instead.

Specifications
Brand Hayward
Manufacturer part number SX360Z1
Alternate part number 20-SX360Z1
UPC 610377209274
Type Bulkhead o-ring
Outside diameter 3-1/8 in.
Inside diameter 2-3/4 in.
Thickness 3/16 in.
Fits Hayward Pro Series S210S, S220S, S244S, S310S, S360S; Pro Series Plus S311SX, S311SXV, S360SX; MicroClear DE2400, DE3600, DE4800, DE6000; Super StarClear C2000, C3000, C4000, C4500, C5000, C5500
Model years After 1996
Shipping weight 0.01 lb
Ships Parcel

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Questions and answers

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

Which filters use this o-ring?
Pro Series side mount sand filters S210S, S220S, S244S, S310S and S360S, Pro Series Plus S311SX, S311SXV and S360SX, MicroClear DE filters DE2400 through DE6000, and Super StarClear cartridge filters C2000 through C5500, on tanks built after 1996.
What are the dimensions?
3-1/8 in. outside diameter, 2-3/4 in. inside diameter and 3/16 in. thick.
Is this the same as the diffuser o-ring on my DE filter?
Yes. On Hayward DE filters the SX360Z1 is listed as the diffuser o-ring or union o-ring as well as the bulkhead o-ring.
Why does my filter leak at the bulkhead?
The o-ring between the bulkhead fitting and the tank flattens and hardens with age. Replacing it is the first step; if the leak continues, check the bulkhead fitting and spacer, which are separate parts.
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