PJAN145 / C-7482 / FC-0820
145 sq ft replacement filter cartridge • 7″ OD × 32.8125″ long
Jandy's biggest cartridge filters, the CL580 and CV580, use four of these, at 145 square feet each for 580 square feet total. At nearly 33 inches tall, the PJAN145 is the long one in the Jandy lineup, which is how you tell it from the shorter 340 and 460 cartridges. Jandy and Zodiac number it R0357900, and the cross-references are Unicel C-7482 and Filbur FC-0820. As with the smaller CV filters, replace the complete set at once. If you're not sure whether you have a 580 or one of the shorter tanks, measure the old cartridge. Height is the deciding spec, and the wrong length won't seal.
Compare on Amazon
PJAN145 replacements on Amazon
The buttons below pull up Amazon results for each cross-reference part number. Same physical cartridge, different stickers, often different prices. Cross-shop and pick the cheapest option that has solid recent reviews.
Cross-Reference & Interchangeable Part Numbers
| Brand | Part Number | Type |
|---|---|---|
| Pleatco | PJAN145 | Primary |
| Unicel | C-7482 | Equivalent |
| Filbur | FC-0820 | Equivalent |
| OEM | Jandy/Zodiac R0357900 | Original Equipment |
Always verify dimensions and end-cap type before purchasing a replacement.
Compatible Pool Filter Systems
Frequently Asked Questions
What are the dimensions of the PJAN145?
The PJAN145 is 7 inches in outer diameter, 32.8125 inches long, with an open top and an open bottom. Total filtration area is 145 square feet. Before ordering, pull your existing cartridge and measure it yourself, or check the label inside the housing. OD and length both have to match within about an eighth of an inch, and the end-cap style needs to match exactly so the cartridge seats properly when the lid closes.
What other part numbers are interchangeable with the PJAN145?
PJAN145 is the same physical cartridge as C-7482, FC-0820, plus OEM versions like Jandy/Zodiac R0357900. Same dimensions (7" × 32.8125"), same open top, same open bottom. The Pleatco, Unicel, and Filbur boxes ship the same media inside, just with different stickers. The only thing to watch is the end-cap style: if a cross-reference has a slightly different cap design, it may not seat right in your housing.
Is the Jandy/Zodiac R0357900 the same filter as the PJAN145?
Yes. Jandy/Zodiac R0357900 is an OEM number, the code the tub or pool builder stamps on the cartridge they ship. The filter itself is made by Pleatco, Unicel, or Filbur, so Jandy/Zodiac R0357900 and PJAN145, C-7482, FC-0820 all point to one interchangeable cartridge. Buy whichever is cheapest with solid recent reviews, and just check that the dimensions match your old cartridge before you order.
How often should I replace the PJAN145?
At 145 sq ft the PJAN145 is a large-format pool cartridge with a lot of media to load up before it fails. In a residential pool with balanced water, two years is a realistic lifespan, sometimes more. Go by pressure rather than the calendar: once filter pressure climbs 8 to 10 psi over the clean starting point and an overnight soak won't bring it back, the media is spent. Torn or channeled pleats mean replacement no matter how old the cartridge is.
How do I clean the PJAN145?
The PJAN145 has open ends on both top and bottom, so water flows straight through. Pull the cartridge from the housing and hose it down. Hit the pleats from above at about a 45-degree angle so water rinses debris out instead of packing it deeper, and work top to bottom while rotating the cartridge. Skip the pressure washer. The high pressure tears or collapses pleats, and once that happens you've lost media that doesn't come back. Every few months, give it a deeper clean: soak in a dedicated pool filter cleaner per the product's dwell time, then rinse it down completely before reinstalling. Keeping a spare cartridge on the shelf is genuinely worth it. You swap, run the soak overnight, and the pool keeps filtering.
Which hot tubs and spas use the PJAN145?
Pull your existing cartridge and read the part number off the end cap, or check the label inside the filter compartment. That's the most reliable way to confirm compatibility.
Dimensions
Specifications
| Outer Diameter | 7″ |
|---|---|
| Length | 32.8125″ |
| Top Type | Open (no end cap) |
| Bottom Type | Open (no end cap) |
| Filtration Area | 145 sq ft |
| Primary Brand | Pleatco |
| Part Number | PJAN145 |
Fitment notes
3-inch top and bottom openings. Jandy CL580 / CV580 (4 cartridges, 580 sq ft total).