PAS50SV-F2M / 6CH-502 / FC-0311
50 sq ft replacement filter cartridge • 6.75″ OD × 8″ long
Artesian's Island Series, South Seas, and Platinum Elite tubs use this 50-square-foot cartridge, and it has a specific fitting you need to get right: a handle on top and a 2-inch male-threaded (MPT) base that screws into the housing. If yours has that threaded bottom, this is it. Artesian part numbers include 06-0005-12, 06-0006-12, and 60506, and it crosses to Unicel 6CH-502 and Filbur FC-0311. Artesian has shifted filter sizing over the years across its lineup, so don't assume every Island or South Seas tub takes the same element. Thread the old one out and match the fitting and length before you order a replacement.
Compare on Amazon
PAS50SV-F2M 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 | PAS50SV-F2M | Primary |
| Unicel | 6CH-502 | Equivalent |
| Filbur | FC-0311 | Equivalent |
| OEM | Artesian 06-0005-12 | Original Equipment |
| OEM | Artesian 06-0006-12 | Original Equipment |
| OEM | Artesian 06-0056-12 | Original Equipment |
| OEM | Artesian 60506 | Original Equipment |
Always verify dimensions and end-cap type before purchasing a replacement.
Compatible Hot Tubs & Spas
The PAS50SV-F2M (or any of its cross-references) fits these spa models. Cartridge sizing occasionally shifted between model years, so it's worth confirming against your owner's manual or the cartridge label.
| Brand | Model |
|---|---|
| Artesian | Island Series |
| Artesian | South Seas |
| Artesian | Platinum Elite |
Frequently Asked Questions
What are the dimensions of the PAS50SV-F2M?
The PAS50SV-F2M is 6.75 inches in outer diameter, 8 inches long, with a handle top and an open bottom. Total filtration area is 50 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 PAS50SV-F2M?
PAS50SV-F2M is the same physical cartridge as 6CH-502, FC-0311, plus OEM versions like Artesian 06-0005-12, Artesian 06-0006-12, Artesian 06-0056-12, Artesian 60506. Same dimensions (6.75" × 8"), same handle 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 Artesian 06-0005-12 the same filter as the PAS50SV-F2M?
Yes. Artesian 06-0005-12 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 Artesian 06-0005-12 (along with Artesian 06-0006-12, Artesian 06-0056-12, Artesian 60506) and PAS50SV-F2M, 6CH-502, FC-0311 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 PAS50SV-F2M?
Mid-size spa cartridges like the PAS50SV-F2M (50 sq ft) usually last 12 to 24 months. It shows up most often in Artesian tubs. The real driver is use: a tub that gets daily soaks for a couple of people burns through cartridges about twice as fast as one used a few times a month. A good rhythm is a monthly hose rinse, a deep soak in cleaner at every water change (every three to four months), and replacement once the pleats tear, the seams stain brown, or a soak no longer brings post-clean pressure back to baseline.
How do I clean the PAS50SV-F2M?
The PAS50SV-F2M has a built-in handle on top, which means you can pull it without touching the media. 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 (or at every water change, whichever comes first), do a deep clean: overnight soak in a hot tub filter cleaner, then a thorough rinse. If your cartridge has a closed end cap, let it dry before reinstalling so you don't trap moisture inside the cartridge core.
Which hot tubs and spas use the PAS50SV-F2M?
The PAS50SV-F2M is compatible with: Artesian Island Series, Artesian South Seas, Artesian Platinum Elite. Confirm against your owner's manual or the label inside the filter compartment, since some brands changed cartridge sizing between model years.
Dimensions
Specifications
| Outer Diameter | 6.75″ |
|---|---|
| Length | 8″ |
| Top Type | Handle |
| Bottom Type | Open (no end cap) |
| Filtration Area | 50 sq ft |
| Primary Brand | Pleatco |
| Part Number | PAS50SV-F2M |
Fitment notes
Handle top, 2-inch MPT threaded bottom. Artesian Island Series, South Seas, Platinum Elite, Tropic Seas (Fiji, Kawai, Kona, Lanai, Maui, Oahu).