Pentair U11-198P 2 inch half union adapter for DEPB and HRPB filtersPentair DEPB and HRPB Half Union Adapter, 2", U11-198P$1899
Pentair U11-198P 2 inch half union adapter for DEPB and HRPB filters
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Pentair DEPB and HRPB Half Union Adapter, 2", U11-198P

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$1899
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Quick overview

  • Genuine Pentair Factory part U11-198P rather than a generic union half.
  • Two inch size The 2 inch half of the union, matched to the filter port it threads into.
  • DEPB and HRPB Listed for the DEPB vertical D.E. filter and the HRPB high rate sand filter.
  • Half union This is one half of the union, so order what your job actually needs before you break the plumbing apart.
  • Lets the filter come apart Unions are what allow a filter to be pulled for service without cutting pipe.
  • Check the o-ring A union that weeps is usually the seal rather than the adapter, so inspect the o-ring while you have it apart.
Full description and specifications ↓

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Product details

Pentair U11-198P is the 2 inch half union adapter used on the DEPB vertical D.E. filter and the HRPB high rate sand filter. It is the genuine Pentair part.

What a half union is

A union joins two lengths of pipe with a threaded collar so that the joint can be taken apart by hand. This listing is one half of that assembly, the adapter that goes on the filter side. It is worth being clear about which half you are missing before ordering, since the two sides are not interchangeable.

Why unions matter on a filter

Filters have to come off for service, and without unions that means cutting and re-gluing pipe every time. A sound union is the difference between a fifteen minute filter pull and an afternoon of plumbing. When you reassemble one, check the o-ring in the joint. A union that drips is far more often a hardened seal than a failed adapter.

Specifications
Brand Pentair
Manufacturer part number U11-198P
UPC 788379865016
Type Half union adapter
Size 2"
Fits Pentair DEPB vertical D.E. filter and HRPB high rate sand 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.

Is this the whole union?
No. It is the half union adapter, one side of the union, part U11-198P.
What size is it?
2 inch.
Which filters is it listed for?
The DEPB vertical D.E. filter and the HRPB high rate sand filter.
My union is leaking. Is this the part I need?
A weeping union is more often the o-ring than the adapter. Take it apart and look at the seal first. Replace the adapter if it is cracked or the threads are damaged.
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