Sta-Rite C1-271P pump diffuser for 1-1/2 HP through 3 HP pumpsSta-Rite Diffuser for 1-1/2 HP to 3 HP Pumps, C1-271P In stock$4399
Sta-Rite C1-271P pump diffuser for 1-1/2 HP through 3 HP pumps
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Sta-Rite Diffuser for 1-1/2 HP to 3 HP Pumps, C1-271P

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$4399
In stock
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Quick overview

  • One diffuser, 1-1/2 HP to 3 HP Unlike the impeller, the diffuser is shared across the whole horsepower range.
  • Sta-Rite part C1-271P The factory diffuser rather than a generic substitute.
  • Directs flow off the impeller The diffuser converts impeller speed into pressure, which is where a cracked one costs you head.
  • Several pump families Carried for Sta-Rite Max-E-Pro, Sta-Rite IntelliPro VS 3050 and Pentair Pinnacle pumps.
  • Do the o-ring at the same time The diffuser o-ring is its own part number and is worth renewing while the pump is open.
  • Screws sold separately The diffuser screws covering 1-1/2 HP through 3 HP are listed under their own part number.
Full description and specifications ↓

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Product details

The Sta-Rite C1-271P is the pump diffuser covering 1-1/2 HP through 3 HP. One part number spans that whole range, which is worth knowing because the impeller behind it is horsepower specific and the diffuser is not.

What the diffuser does

The impeller throws water outward at speed. The diffuser is the shaped housing that catches it and turns that speed into the pressure the filter and returns actually see. When it cracks, warps from heat, or loses the fit around the impeller hub, water recirculates inside the pump instead of leaving it. The symptom is a pump that sounds normal and moves noticeably less water.

Pump coverage

C1-271P is carried in the parts groups for the Sta-Rite Max-E-Pro, the Sta-Rite IntelliPro VS 3050 and the Pentair Pinnacle, and it also appears in the Max-E-Glas II and Dura-Glas II listings.

While the pump is open

The o-ring that seals the diffuser and the diffuser screws are separate part numbers. Both are cheap, both are already exposed once the pump is apart, and neither is worth a second teardown.

Specifications
Brand Sta-Rite
Manufacturer part number C1-271P
UPC 788379733025
Part type Pool pump part
Type Diffuser
Horsepower range 1-1/2 HP to 3 HP
Fits Sta-Rite Max-E-Pro, Sta-Rite IntelliPro VS 3050 and Pentair Pinnacle pumps
Also listed for Sta-Rite Max-E-Glas II and Dura-Glas II pumps
Shipping weight 0.6 lb
Ships Parcel

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Questions and answers

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

Does one diffuser cover every horsepower?
Yes. C1-271P is listed for 1-1/2 HP through 3 HP. The impeller is the part that changes with horsepower, not the diffuser.
Which pumps use it?
It is listed for the Sta-Rite Max-E-Pro, the Sta-Rite IntelliPro VS 3050 and the Pentair Pinnacle, and it also appears in the Max-E-Glas II and Dura-Glas II parts groups.
Are the o-ring and screws included?
The diffuser o-ring and the diffuser screws are listed under their own part numbers, so order them alongside the diffuser if yours are worn.
Why replace a diffuser?
A cracked or warped diffuser lets water slip back past the impeller instead of going out to the filter, and that shows up as weak returns and low flow.
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