PD60SL / C-7403
60 sq ft replacement filter cartridge • 7″ OD × 17.625″ long
Doughboy's 60-square-foot filter uses this cartridge, 7 inches wide and about 17-5/8 inches tall, with the line's closed knob top and open base. Doughboy numbers it 239-060 and 2396-060, and the Unicel cross-reference is C-7403. There's no Filbur listing for this size. It's the second-largest of the four Doughboy cartridges, a good match for a larger above-ground pool that needs more filtration than the 20 or 40 can provide. Since every Doughboy cartridge is the same 7-inch diameter, length is the only thing that distinguishes them, so confirm the height of your old element before you order this one.
Compare on Amazon
PD60SL 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 | PD60SL | Primary |
| Unicel | C-7403 | Equivalent |
| OEM | Doughboy 239-060 | Original Equipment |
| OEM | Doughboy 2396-060 | Original Equipment |
Always verify dimensions and end-cap type before purchasing a replacement.
Compatible Pool Filter Systems
| Brand | Model |
|---|---|
| Doughboy | 60 sq ft Pool Filter |
Frequently Asked Questions
What are the dimensions of the PD60SL?
The PD60SL is 7 inches in outer diameter, 17.625 inches long, with a closed top and an open bottom. Total filtration area is 60 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 PD60SL?
PD60SL is the same physical cartridge as C-7403, plus OEM versions like Doughboy 239-060, Doughboy 2396-060. Same dimensions (7" × 17.625"), same closed 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 Doughboy 239-060 the same filter as the PD60SL?
Yes. Doughboy 239-060 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 Doughboy 239-060 (along with Doughboy 2396-060) and PD60SL, C-7403 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 PD60SL?
At 60 sq ft the PD60SL runs smaller than the big 100-plus sq ft pool cartridges, so it has less buffer between cleanings. Expect 12 to 18 months in normal use, less if the pool sees heavy traffic or the chemistry drifts. Watch the gauge: when pressure sits 8 to 10 psi above the clean starting point and a soak won't drop it, put in a fresh one.
How do I clean the PD60SL?
The PD60SL has a closed (solid) top cap, so water enters through the side and drains through the bottom only. 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 PD60SL?
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 | 17.625″ |
| Top Type | Closed (solid end cap) |
| Bottom Type | Open (no end cap) |
| Filtration Area | 60 sq ft |
| Primary Brand | Pleatco |
| Part Number | PD60SL |
Fitment notes
Injection molded knob/closed top. Doughboy 60 sq ft pool filter.