Hayward CX591XREPAK4 Replacement Cartridge Set – Pack of 4

The Hayward CX591XREPAK4 is a four-pack of genuine replacement cartridges designed for the SwimClear® C7030 filtration system. Each cartridge helps restore full filtration performance, extending run times and ensuring clean, clear water.

Key Features

Includes four identical cartridge elements—ideal for full replacement in multi-cartridge filter systems.
High-capacity filtration media supports larger pools or high-load conditions to reduce maintenance frequency.
OEM-matched fit ensures seamless installation and proper performance with compatible filter tanks.

Technical Specifications

Part Number: CX591XREPAK4
Quantity: 4 cartridges per pack
Applicable Filter: Compatible with SwimClear® C7030 and other filters requiring this cartridge size

Installation & Usage Notes

Before servicing, shut off the pump and relieve any pressure in the filter system. Remove the old cartridges and inspect the filter tank interior for debris or wear. Insert the new set of four cartridges, ensuring proper seating and clear access. Re-assemble the filter and restore circulation. Monitor the pressure gauge to confirm normal operation and improved flow performance.

Maintenance Tips

Inspect the filter elements at each cleaning interval; if the pressure rise exceeds your baseline, consider replacing them as part of scheduled maintenance.
Rinse cartridges regularly to extend life, but replace when wear, torn media or collapse is visible to maintain optimal filtration.
Keep this cartridge set in inventory for faster service turn-around on full-cartridge replacements in compatible systems.

Why Choose This Cartridge Set?

For pool service professionals, advanced homeowners or supply-store inventory, the Hayward CX591XREPAK4 offers a complete cartridge replacement solution in one purchase. Replacing all elements at once restores original filtration capacity, reduces service interruptions and helps maintain clearer water with fewer downtime cycles.

Hours Of Operation:

Monday - Friday: 8:00 am to 4:00 pm Phoenix Time

Saturday and Sunday: Closed

Orders costing more than $300 WILL be required to have signature confirmation upon delivery.
Handling time is typically only 1 day.
Any item ordered after 1pm Phoenix time, may not ship same-day.
Call us if you require expedited shipping and we can give you quotes based on your needs.

Return Policy:

All products, except as noted below, are eligible for return up to 30 days after receipt of item.
For returns, an RMA form must be filled out HERE or customers can call for additional help.
Shipping costs will be deducted from all returned items.
Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in.
Items broken, damaged, or inoperable due to installer error will not be refunded.
Fill out the return form or give us a call to obtain an RMA and return shipping label.
There are no returns on the Pentair Colorsync 618031
No returns on pool cleaners.
No returns on opened seals and o-rings.
No returns on capacitors.
If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
All products denied upon arrival at customers house WILL be charged the cost to ship.
Visa Gift Card Promotions: Gift cards are sent within 14 days of the order. When accepting the Visa Gift card, you agree that if your order is returned or refunded, this amount will be deducted from the refunded amount. All Visa Gift cards are sent via email in an E-Gift Card format and are non refundable.