Unicel Replacement Filter Cartridge 120 sf Jacuzzi | C-9481
Unicel
SKU: UNFC9481
Unicel C-9481 – 120 sq ft Replacement Cartridge Filter
Product Overview
The Unicel C-9481 is a high-capacity replacement cartridge filter designed for spa and pool filter systems that originally used a 120 sq ft cartridge element. It features up to approximately 218 pleats and delivers efficient filtration and longer intervals between cleanings.
Key Features
- Approximately 120 sq ft of pleated media area.
- Durable spun-bonded polyester media for extended service life.
- Compatible with filter housings that call for C-9481 or equivalents (e.g., Jacuzzi Brothers Sherlock 120, etc.).
- Drop-in replacement – no modifications required when replacing a worn cartridge of the same size.
Technical Specifications
- Part Number: C-9481
- Media Area: ~120 sq ft
- Pleat Count: Approx. 218 pleats
- Diameter: ~10″ outer diameter
- Length: ~20-1/16″ (approx)
Applications & Compatibility
This cartridge is suitable for spa and pool filter systems originally equipped with a 120 sq ft cartridge specification. Prior to purchasing, please verify the filter tank’s existing cartridge size, dimensions, and part number to ensure compatibility.
Installation Instructions
- Turn off pump and relieve system pressure before servicing.
- Remove the old cartridge and inspect the housing interior for debris, damage or worn O-rings.
- Install the new C-9481 cartridge, making sure it seats correctly and aligns with the manifold or base plate.
- Close the filter housing, restore circulation and monitor gauge/pressure to ensure proper operation.
Troubleshooting
- High pressure soon after installation: Check return and suction valves, make sure the new cartridge is properly seated and there are no blockages or restricted flows.
- Cloudy water or low flow: Confirm the cartridge is correctly sized, pleats not compressed, and the filter lid gasket is sealing properly.
- Leaks at lid or base: Inspect O-rings, gaskets and ensure correct torque and alignment of housing after cartridge install.
Maintenance Tip
Rinse the cartridge periodically to remove debris and extend life. Use a cartridge cleaner annually as needed. Replace the cartridge when pleats become worn, media damaged or system pressure remains high after cleaning. Regular maintenance ensures longer life and better performance from your filtration system.
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.
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