Unicel Replacement Filter Cartridge 50 sf Jacuzzi CFR-50 | C-9650
Unicel
SKU: C-9650
Unicel C-9650 Replacement Cartridge Filter – 50 Sq Ft (For Jacuzzi CFR-50 / CFT-50)
The Unicel C-9650 is a high-quality 50 sq ft replacement cartridge designed for select Jacuzzi pool/spa cartridge filter systems, commonly used with Jacuzzi CFR-50 and CFT-50 applications. It features open (no-cap) ends with different inside diameters, making it important to match measurements to your existing cartridge.
Key Features
- 50 sq ft filtration area for strong water clarity and consistent flow
- Durable pleated media designed to capture fine debris and extend time between cleanings
- Open top and open bottom end caps for the correct fit on compatible Jacuzzi canisters
- Direct-fit replacement when matched by part number and dimensions
Specifications
- Part Number: C-9650
- Filtration Area: 50 sq ft
- Outside Diameter: 9-15/16" (9.9375")
- Length: 10"
- Top End Cap: Open
- Top Inside Diameter: 5-13/16" (5.8125")
- Bottom End Cap: Open
- Bottom Inside Diameter: 6-1/16" (6.0625")
- Pleat Count: 194
Replaces / Compatible With
- Jacuzzi: CFR-50 / CFT-50 (commonly referenced OEM cartridge: 42-2940-09-R)
- Pleatco: PJ50-4
- Filbur: FC-1460
When to Replace
- Filter pressure rises quickly after cleaning or circulation feels restricted
- Cartridge pleats are torn, flattened, or the end caps are cracked/warped
- Water stays cloudy even with proper chemistry and regular cleaning
- Cartridge is no longer cleaning up well after a deep soak and thorough rinse
Related Products
- Cartridge Filter Cleaner
- Filter Tank O-Rings & Gaskets
- Filter Pressure Gauges
- Cartridge Cleaning Tools
- Pleatco PJ50-4 (Alternate Cartridge)
- Filbur FC-1460 (Alternate Cartridge)
Maintenance Tips
- Rinse the cartridge when pressure rises about 8–10 PSI above your clean starting pressure (or when flow drops).
- For best results, rotate between two cartridges (one in service, one drying after cleaning) to extend overall cartridge life.
- Deep clean periodically with a cartridge cleaner to remove oils and fine debris; rinse thoroughly before reinstalling.
- Keep water chemistry balanced—high calcium and extreme pH can shorten cartridge life and cause premature clogging.
Questions about returns? View our return policy.
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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