
Sta-Rite Diffuser 1.5 HP to 2 HP Dyna-Glas/Max, C1-270P
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Quick overview
- Genuine Sta-Rite Factory diffuser, part number C1-270P.
- Horsepower specific Listed for the 1.5 HP and 2 HP builds, so confirm the horsepower on your motor plate.
- Dyna-Glas and Dyna-Max The diffuser named for those Sta-Rite pump families.
- Shapes the flow The diffuser wraps the impeller and turns its spin into pressure, so a cracked one costs you flow.
- Pool pump part Listed as a pool pump part, an internal wet end component rather than a plumbing fitting.
- Pair it with the impeller Diffusers and impellers wear as a set, so inspect both while the wet end is apart.
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Frequently bought together

Diffuser 1.5 HP to 2 HP Dyna-Glas/Max, C1-270P
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Product details
The Sta-Rite C1-270P is the genuine diffuser for 1.5 HP and 2 HP Dyna-Glas and Dyna-Max pool pumps. It is the plastic housing that sits directly over the impeller inside the pump volute.
Why the diffuser matters
An impeller throws water outward at speed. On its own that is turbulence, not useful flow. The diffuser captures that water in a shaped passage and turns velocity into pressure, which is what pushes water through the filter and back to the pool. When the diffuser cracks, or when its face wears where it runs close to the impeller, water simply recirculates inside the pump. The result looks like a filter problem: weak returns, poor skimming and a pump that runs hot for nothing.
Before you order
This diffuser is listed for the 1.5 HP and 2 HP builds, so read the horsepower on the motor label rather than going by the pump body. Our catalog also files this part under Sta-Rite Dyna-Pro and Dyna-Pro E pump parts, so if you are working on a Dyna-Pro, match the number cast into the old diffuser before you buy.
Diffusers and impellers wear against each other. While the wet end is open it is worth checking the impeller for wear and the shaft seal for weeping, since the labor is already done.
| Brand | Sta-Rite |
|---|---|
| Manufacturer part number | C1-270P |
| UPC | 788379732998 |
| Type | Diffuser |
| Part type | Pool pump part |
| Horsepower | 1.5 HP to 2 HP |
| Fits | Sta-Rite Dyna-Glas and Dyna-Max pumps |
| Also filed under | Sta-Rite Dyna-Pro and Dyna-Pro E pump parts |
| 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.
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