Hayward Super II Diffuser, 1-1/2 HP to 3 HP Full Rate In stock$5416
Quick overview
- Genuine Hayward The factory SPX3021B diffuser, molded in plastic like the original.
- Covers 1-1/2 HP to 3 HP The full rate horsepower band this diffuser is built for.
- Super II family Fits the Hayward Super II SP3000 and SP3000X series, and the Heldor EZ-Flo pumps built on the same body.
- Restores lost flow A cracked or worn diffuser lets water slip back past the impeller, so the pump moves less water at the same motor speed.
- Shapes the flow The diffuser sits over the impeller and turns its speed into usable pressure through the volute.
- Match the gasket The diffuser gasket is a separate part and is easy to change while the pump is already open.
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Product details
The Hayward SPX3021B is the replacement diffuser for Super II pool pumps in the 1-1/2 HP through 3 HP full rate range. It is the genuine Hayward part, molded in plastic like the one it replaces.
What the diffuser does
The diffuser sits over the impeller and directs the water leaving it into the volute. That shaping is what turns impeller speed into pressure and flow. A diffuser that is cracked, warped, or worn around the impeller opening lets water slip back instead of moving forward, and the pump loses output even though the motor sounds exactly the same.
Match the horsepower
Hayward uses different diffusers across the Super II range, so horsepower matters when you order. This one covers 1-1/2 HP to 3 HP full rated pumps and also serves the Heldor EZ-Flo pumps built on the same body.
Because the pump has to come apart to reach the diffuser, it is a good moment to look at the diffuser gasket, the impeller ring and the seal plate. Those are separate parts and all of them are far easier to change now than on a second teardown.
| Brand | Hayward |
|---|---|
| Manufacturer part number | SPX3021B |
| UPC | 610377041379 |
| Type | Pump diffuser |
| Part type | Pool pump part |
| Material | Plastic |
| Horsepower range | 1-1/2 HP to 3 HP, full rate |
| Fits | Hayward Super II SP3000 and SP3000X series pumps, Heldor EZ-Flo |
| Shipping weight | 0.5 lb |
| Ships | Parcel |
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