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Hayward Diffuser Gasket | SPX1600R - Pump Parts - img - 1

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Hayward SPX1600R Diffuser Gasket – Replacement Seal for Super Pump / Super II / MaxFlo

Part # SPX1600R — a replacement diffuser gasket designed for select Hayward pool pumps including Super Pump, Super II, MaxFlo, and related models. This gasket seals the diffuser housing to maintain proper water flow and pressure inside the pump.

Key Features

Chemical-resistant rubber construction suitable for pool water and regular use.
OEM-spec design ensures a tight seal between diffuser and housing to prevent leaks, loss of suction, or pressure drop.
Compatible with multiple Hayward pump families — including Super Pump (SP1600X series), Super II (SP3000 series), MaxFlo, and other supported models.
Easy replacement — remove old gasket, clean surfaces and install the new SPX1600R gasket during regular pump maintenance or rebuild.

Typical Applications

Use this gasket whenever you remove the pump housing for maintenance, seal replacement, or inspection — especially if the old gasket is worn, damaged, cracked, or leaks. It helps restore proper hydraulic integrity and prolong pump life.

Installation & Compatibility Notes

Before working on the pump, turn off power and relieve all water pressure. Disassemble the pump housing to access the diffuser area. Remove the old gasket and clean all sealing surfaces thoroughly. Install the SPX1600R gasket evenly, ensuring full contact and proper alignment. Reassemble the housing, re-prime the pump, and check for leaks or pressure stability before returning to normal operation.

Why Choose This Gasket?

Replacing a worn or degraded diffuser gasket with the correct SPX1600R ensures your pump maintains proper pressure, avoids air leaks, and delivers optimal water circulation — which is essential for filter efficiency and pump longevity.

Maintenance Tips

Inspect the gasket whenever the pump is opened for cleaning, seal service, or winterization.
Replace immediately if the gasket is cracked, stiff, flattened, or shows signs of deterioration.
Ensure sealing surfaces are clean and free of debris or buildup before installing the new gasket to guarantee proper sealing.
After reassembly, prime the pump carefully and check for stable pressure and absence of leaks during operation.

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.