Hayward Super II Pump Diffuser 2-1/2 - 3HP | SPX3021B
Hayward Products
SKU: SPX3021B
Hayward SPX3021B Diffuser
Part Number: SPX3021B
Description
A genuine replacement diffuser for Hayward Super II and RS series pumps manufactured after 1990 with 2.0, 2.5 and 3.0 HP ratings. It helps optimize water flow into the impeller for improved efficiency and performance.
Compatibility & Fitment
- Fits Hayward Super II (SP3000 series) and RS series pumps built after 1990 with 2, 2.5 or 3 HP motors.
- Use when the existing diffuser is cracked, worn, or causing loss of flow, noise, or reduced pump performance.
- Direct replacement for systems originally equipped with part number SPX3021B.
Features & Specifications
- Precision-molded for optimum fit-and-flow in the Hayward Super II pump housing.
- Improves hydraulic efficiency by correctly channeling water into the impeller.
- Constructed of durable polymer material suitable for pool water environments.
- Dimensions: approximately 6-7/8″ × 3-1/2″.
Installation Notes
Turn off power and lock out the circuit. Remove the pump housing and impeller to access the diffuser. Remove the old diffuser and clean the sealing surfaces. Install the new SPX3021B diffuser, reposition the impeller and reassemble the pump. Restore power and verify normal operation and flow.
Maintenance Tip
Inspect the diffuser during each service interval for cracks, wear or flow irregularities. If flow drops, pressure increases or the diffuser is damaged, replace it to maintain pump performance and longevity.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 7:00 am to 5:00 pm Phoenix Time
Saturday: 8:00 am to 2:00 pm
Sunday: Closed
- We do not ship on Saturday or Sunday.
- Orders totaling more than $300 will require signature confirmation upon delivery.
- We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
- Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
- Expedited shipping options are available at checkout.
Return Policy:
- Products that are received damaged will receive a refund in store credit.
- Most products are eligible for return within 30 days of receipt, except where noted below.
- To initiate a return, please complete an RMA form prior to sending your item back.
- Original shipping costs are non-refundable and will be deducted from the return credit.
- Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
- Some returns will be charged an automatic 15% restocking fee.
- We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
- Please complete the return form to receive your RMA number and return shipping label.
- Chemical products are not eligible for return under any circumstances.
- The Pentair Colorsync 618031 is not eligible for return.
- Pool cleaners are not eligible for return.
- Opened seals and o-rings are not eligible for return.
- Capacitors are not eligible for return.
- Plastic popup tools are not eligible for return.
- Automation components and circuit boards are not eligible for return.
- If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
- Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
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