Pentair 521507 chemical container lid o-ring, five packPentair Chemical Container Lid O-Ring, 5 Pack, 521507 In stock$8799
Pentair 521507 chemical container lid o-ring, five pack

Pentair Chemical Container Lid O-Ring, 5 Pack, 521507

Ask a questionMPN 521507
$8799
In stock

30 day returns · Easy, with prepaid labels provided

Quick overview

  • Genuine Pentair Factory part number 521507, matched to the container lid it seals.
  • Five to a pack Sold in a five pack, which suits a service van or a multi container install.
  • Lid seal This is the o-ring that seals the chemical container lid.
  • Consumable part Chemical contact hardens an o-ring over time, so it is a scheduled replacement rather than a repair.
  • Keeps the lid sealed A tired ring lets the lid weep, which is both a mess and a loss of chemical.
  • Stock ahead Buying the pack means the next service call already has the seal on the truck.
Full description and specifications ↓

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Product details

The Pentair 521507 is the o-ring for the chemical container lid, supplied five to a pack. It is the genuine Pentair replacement seal.

Why it is a consumable

An o-ring that lives in contact with pool chemicals does not age the way a plain water seal does. It hardens, loses its spring and eventually cracks, and once that happens the lid no longer pulls down tight. Treating it as a scheduled replacement is easier than chasing a weeping lid.

The five pack

Five rings in one order suits a service tech carrying spares or a site running more than one container. Fitting a fresh ring at each service is quick and takes the seal out of the list of things that can go wrong.

Specifications
Brand Pentair
Manufacturer part number 521507
UPC 788379851453
Type O-ring
Location Chemical container lid
Quantity 5 per pack
Shipping weight 0.35 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?
Five. Pentair 521507 is supplied as a five pack.
What does it seal?
The lid on the chemical container. It is the ring that keeps the lid closed tight against the container rim.
Is it a genuine Pentair part?
Yes. It is the Pentair part, number 521507.
How do I know mine needs changing?
If the ring has gone hard, flat or cracked, or the lid weeps around its edge, it is done. Chemical exposure ages these rings faster than water alone.
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