Pentair 178732Z union nut C clipPentair Genuine OEM Union Nut C Clip, 178732Z In stock$1399
Pentair 178732Z union nut C clip
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Pentair Genuine OEM Union Nut C Clip, 178732Z

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$1399
In stock
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Quick overview

  • Genuine Pentair Factory part 178732Z, ordered by number rather than by eye.
  • The clip, not the union This listing is the C clip alone. The union collar and the union seal are separate parts.
  • Small part, real job The clip is what keeps the union nut where it belongs, and a missing one turns a routine service into a leak.
  • No tools needed A C clip goes on and comes off by hand, which is exactly why they go missing on the deck.
  • Worth keeping spare Clips like this disappear during a filter or pump service, and one in the box saves a second trip.
  • Buy the set together A 2 in. union collar and a union diamond seal are the parts most often ordered alongside it.
Full description and specifications ↓

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Product details

The Pentair 178732Z is the union nut C clip, the small retaining clip that holds a union nut in place. It is the genuine Pentair part.

Why a clip is worth ordering

It is one of the least expensive parts on the equipment pad and one of the most annoying to be without. The clip keeps the union nut captive so the joint stays where it was set. Lose one during a service and the union will not hold properly, which shows up as a weep at the joint or a nut that keeps backing off.

Ordering

This listing is the clip by itself. A 2 in. union collar and a union diamond seal are the parts most often bought with it, and if the union is already apart it is sensible to replace the seal while you are there.

Specifications
Brand Pentair
Manufacturer part number 178732Z
UPC 788379852566
Type Union nut C clip
Function Retains the union nut
Sold as Clip only
Shipping weight 0.5 lb
Ships Parcel

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Questions and answers

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

What does this clip do?
It retains the union nut. Without it the nut is free to work its way off the union.
Does it include the union?
No. This is the C clip on its own. The union collar and the union seal are ordered separately.
Is it a genuine Pentair part?
Yes. Pentair part number 178732Z.
Should I order anything with it?
A 2 in. union collar and a union diamond seal are the parts commonly ordered alongside this clip. If the union is apart anyway, replacing the seal at the same time is cheap insurance.
Ask your own question