Jandy R0487400 lid O-ring for JS100-SM filterJandy Lid O-Ring for JS100-SM Filter, R0487400 In stock$2499
Jandy R0487400 lid O-ring for JS100-SM filter
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Jandy Lid O-Ring for JS100-SM Filter, R0487400

Ask a questionMPN R0487400
$2499
In stock
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Quick overview

  • Genuine Jandy Factory O-ring R0487400, sized to the JS100-SM lid.
  • Stops a leaking lid The usual cure for water weeping or air hissing at the top of the tank.
  • Correct section A generic ring of the wrong thickness will roll or extrude under pressure.
  • Service item Worth renewing whenever the lid comes off for filter service.
  • Simple fit The old ring lifts out and the new one seats in the same groove.
  • Lubricate on assembly A silicone based O-ring lubricant helps it seat and makes the next removal easier.
Full description and specifications ↓

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Product details

The Jandy R0487400 is the lid O-ring for the JS100-SM filter. It is the genuine Jandy part, sized to the groove in the filter lid.

What it does

The lid O-ring is the only thing between the pressurised inside of the filter and the equipment pad. When it flattens, cracks or picks up grit, the lid starts to weep during a run, or the system draws air in at the top of the tank and the pump loses prime.

Fitting

Lift the old ring out, wipe the groove and the mating face clean, then seat the new ring. A silicone based O-ring lubricant helps it settle evenly and keeps the lid from binding the next time it comes off. Since the ring is inexpensive and only reachable with the lid open, it is worth changing whenever the filter is serviced.

Specifications
Brand Jandy
Manufacturer part number R0487400
UPC 052337051651
Type Lid O-ring
Fits Jandy JS100-SM filter
Shipping weight 0.2 lb
Ships Parcel

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Questions and answers

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

Which filter is this O-ring for?
The Jandy JS100-SM. Jandy lists the lid O-ring as part R0487400.
My lid is leaking, is this the fix?
Usually. Water weeping from the lid joint, or air drawn in there, almost always traces back to a flat, cracked or dirty lid O-ring.
Do I need lubricant?
A silicone based O-ring lubricant is a good idea. It helps the ring seat evenly and makes the lid easier to remove next time.
Can I use a generic O-ring?
It is not worth the risk. The groove needs the right diameter and cross section, and an incorrect ring can roll or extrude once the pump comes up to pressure.
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