
Pentair Challenger Diffuser, 1-1/2 HP Full Rated, 2 HP Up Rated, High Pressure
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.
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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.
| 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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