Pentair 355270Z diffuser for Challenger high pressure pumpsPentair Challenger Diffuser, 1-1/2 HP Full Rated, 2 HP Up Rated, High Pressure, 355270Z In stock$3999
Pentair 355270Z diffuser for Challenger high pressure pumps
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Pentair Challenger Diffuser, 1-1/2 HP Full Rated, 2 HP Up Rated, High Pressure, 355270Z

Ask a questionMPN 355270Z
$3999
In stock
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Quick overview

  • Genuine Pentair The factory diffuser, part 355270Z.
  • High pressure models Made for the Challenger high pressure, high head pump line.
  • Horsepower matched Fits the 1-1/2 HP full rated and 2 HP up rated pump.
  • Works with the impeller The diffuser wraps the impeller, so the two have to be matched by horsepower on any rebuild.
  • Two part numbers The same diffuser appears as 355270 and as 355270Z.
  • Rebuild item Worth changing whenever the impeller for the same horsepower is replaced.
Full description and specifications ↓

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Product details

The Pentair 355270Z is the diffuser for Challenger high pressure pumps rated 1-1/2 HP full rated and 2 HP up rated. It is the genuine Pentair part, and it also appears in Pentair listings as 355270.

What the diffuser does

The diffuser sits around the impeller and converts the velocity the impeller creates into pressure before the water leaves the volute. Its clearance to the impeller is what determines how much of the motor work actually reaches the plumbing, which is why the two parts are matched by horsepower and why a worn or cracked diffuser shows up as flow the pump should be making but is not.

Matching the part

This one belongs on the high pressure, high head Challenger at 1-1/2 HP full rated or 2 HP up rated. The impeller for that same rating is ordered separately, and on a rebuild it makes sense to fit both at once so the clearance between them is new.

Specifications
Brand Pentair
Manufacturer part number 355270Z
Also listed as 355270
UPC 788379658649
Type Pump diffuser
Part type Pool pump part
Horsepower 1-1/2 HP full rated, 2 HP up rated
Fits Pentair Challenger high pressure pumps
Shipping weight 0.45 lb
Ships Parcel

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Questions and answers

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

Is this the diffuser or the impeller?
The diffuser. The matching Challenger impeller for the same horsepower rating is a separate part.
Which pumps does it fit?
Pentair Challenger high pressure models rated 1-1/2 HP full rated or 2 HP up rated.
Why are two part numbers shown?
This diffuser is listed as both 355270 and 355270Z. Either number refers to the same part.
Does horsepower have to match?
Yes. Diffusers are horsepower specific, so this one belongs on the 1-1/2 HP full rated or 2 HP up rated high pressure Challenger.
Ask your own question