Hayward Super II Pump Diffuser 3/4 to 1-1/2HP | SPX3000BN
Hayward Products
SKU: SPX3000BN
Hayward SPX3000BN Diffuser – Replacement for Super II Pumps (0.75–1.5 HP)
Part # SPX3000BN — a replacement diffuser designed for use in Hayward Super II pump models (SP3000 / SP3000X series) manufactured after 1988. This diffuser helps ensure proper water flow through the pump housing and supports efficient circulation and filtration performance.
Key Features
- Compatible with Super II pumps rated from ¾ to 1½ HP.
- Precisely engineered to fit the original pump housing for a secure, leak-free installation.
- Ensures optimal hydraulic flow path — helps maintain strong suction, reduced cavitation risk, and stable pump performance.
- Durable molded construction for long-term pool use under chemical and water exposure.
Typical Applications
Use this diffuser when the original has cracked, become worn, chipped, or degraded — symptoms often noticed as reduced flow, air getting into the pump, poor suction or noisy pump operation. It’s appropriate for routine maintenance or pump rebuilding when restoring flow and reliability for SP3000/ SP3000X Super II pumps.
Installation & Compatibility Notes
Before servicing, shut off the pump power and drain water from the pump housing. Remove the old diffuser and inspect the housing and impeller for wear. Install the SPX3000BN diffuser carefully, ensuring it seats properly on the shaft/impeller hub. Reassemble the pump, seal all connections, prime the system, and check for proper flow and prime stability.
Why Choose This Diffuser?
Using the correct SPX3000BN diffuser restores proper flow dynamics inside the pump, helping ensure efficient circulation, reduce energy loss, and extend pump life — all critical for consistent pool water turnover and filtration.
Maintenance Tips
- Inspect the diffuser whenever you service the pump housing or notice reduced performance.
- Ensure the impeller and housing are free of debris before installing the new diffuser to avoid damage or imbalance.
- If replacing the diffuser, consider inspecting the shaft seal — impaired seals often accompany diffuser wear.
- After installation, monitor pump suction and return flow to confirm proper operation and absence of air leaks or cavitation.
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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