Aladdin O-43 generic replacement 2 inch O-ringAladdin Generic Replacement 2" O-Ring In stock$399
Aladdin O-43 generic replacement 2 inch O-ring
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Aladdin Generic Replacement 2" O-Ring

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$399
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Quick overview

  • Aladdin O-43 Generic replacement O-ring built to the dimensions of the original.
  • Stated dimensions 2-1/2 inch inside diameter, 2-3/4 inch outside diameter, 1/8 inch thick.
  • Fits Hayward Super Star Clear Listed for the Super Star Clear cartridge filter family.
  • Also carried for Astral Listed under Astral 2500 Terra and CEL filter parts as well.
  • Measure before you order O-rings are matched by inside diameter and cross section, so check the old ring against the sizes above rather than going by the tank label.
  • Lubricate on assembly A silicone based pool lubricant helps the ring seat evenly and keeps it from rolling or pinching as the housing closes.
Full description and specifications ↓

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Product details

The Aladdin O-43 is a generic replacement O-ring measuring 2-1/2 inches inside diameter, 2-3/4 inches outside diameter and 1/8 inch thick. It is sold as a 2 inch O-ring, which is the nominal trade size, and it is listed for the Hayward Super Star Clear cartridge filter.

Where it is used

Beyond the Super Star Clear filter line, the same ring is carried under Astral 2500 Terra and CEL filter parts. Because O-rings are matched by inside diameter and cross section rather than by equipment name, the safest check is to pull the old ring, measure it, and compare it against the sizes listed above.

Fitting it

Clean the groove and the sealing face before the new ring goes in, then wipe on a thin film of silicone based pool lubricant. That helps the ring seat evenly instead of rolling or pinching as the housing is tightened, and it makes the next service far easier. Petroleum grease should be kept away from pool rubber, since it swells the material.

Specifications
Brand Aladdin
Manufacturer part number O-43
Also listed as O-43-9
UPC 601402110160
Type Replacement O-ring
Inside diameter 2-1/2"
Outside diameter 2-3/4"
Thickness 1/8"
Fits Hayward Super Star Clear filter
Also listed for Astral 2500 Terra and CEL filters
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 this O-ring?
The listed dimensions are 2-1/2 inch inside diameter, 2-3/4 inch outside diameter and 1/8 inch thick. It is sold as a 2 inch O-ring, which is the nominal size rather than a measured one.
What does it fit?
It is listed for the Hayward Super Star Clear cartridge filter, and it is also carried under Astral 2500 Terra and CEL filter parts.
Is this a genuine Hayward part?
No. It is an Aladdin generic replacement made to the same dimensions, which is why it costs less than the factory ring.
Should I lubricate it?
Yes, a thin film of silicone based pool lubricant helps the ring seat and makes the next teardown easier. Avoid petroleum grease, which swells rubber over time.
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