Cal Spas spa filter (C-4995)

Cal Spas

Replacement numbers

Unicel C-4995, Pleatco PCAL100

Fits Cal Spas.

Diameter 4-15/16" (125 mm)Length 23-5/8" (600 mm)100 sq ft

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UnicelC-4995
PleatcoPCAL100
FilburFC-2940
Top2-1/8" (54 mm) / open
Bottom2-1/8" (54 mm) / open
Ø 4-15/16" (125 mm)23-5/8" (600 mm)Side view · end views belowTopBottom
Top: 2-1/8" (54 mm) / open
Bottom: 2-1/8" (54 mm) / open
Drawn to scale from the listed diameter and length and open-end sizes. Handles, threads and closed ends are drawn as symbols, not to scale. 100 sq ft media.

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Cal Spas is the group name on the Cal Spas row C-4995 cartridge. Match these numbers: Unicel C-4995; Pleatco PCAL100; Filbur FC-2940. 4-15/16" across, 23-5/8" long, top 2-1/8" / open, bottom 2-1/8" / open, 100 sq ft.

Hold C-4995 next to 5CH-752 differs by Unicel 5CH-752, Pleatco PCAL60-F2M, Filbur FC-0202, 5-3/16" diameter, 16-1/8" long, top bar handle, bottom 2” male thread/MPT, 75 sq ft, note says Leisure Time Inc. lists Cal Spas OEM 50753 for 5CH-752 (single retailer source, not shown as OEM). Filbur's catalog prints the Unicel number beside FC-0202 as "5CH-702"; C-5374 differs by Unicel C-5374, Pleatco PLBS75, Filbur FC-2971, 5-5/16" diameter, 14-13/16" long, 75 sq ft, note says Filbur lists its FC-2971 equivalent at 5-5/16" x 14-11/16", 65 sq ft.

Left blank on purpose: no model/model-year fitment in sources; Unicel lists no OEM part number for this brand entry.

Pages checked for PCAL100: Unicel 2026 Replacement Guide on C-4995 (OEM cross reference (Cal Spas section), PDF p.30 (printed p.26); spec table PDF p.9 (printed p.5)). Pleatco 2023 Catalog on C-4995 (Unicel-to-Pleatco cross reference, PDF p.47). Filbur Catalog & Reference Guide on C-4995 (Product by Pool/Spa Manufacturer (OEM), Cal Spas, printed p.29 (PDF p.15)).

Check the cartridge you removed

Measure diameter, length, and both ends, then compare them with the figures above. The steps are in the measuring guide. Why the bottom decides whether it seals: open-end vs threaded filters. Power, the retainer, and not running the spa empty: how to install a cartridge. Number formats: how Filbur, Unicel and Pleatco numbers compare.

The same C-4995 number is also on the Waterway Plastics page.

Other Cal Spas cartridges

All 9 Cal Spas spa filters

Every number on this row, on one screen: cross-reference lookup. Published clean and replace intervals for this cartridge, and a buy link for the numbers above: replacement schedule and reorder. The interval comparison by brand: calculator.

Cleaner and test strips

Hose rinse and soak steps are in how to clean a cartridge. Named cleaners and strips are in filter cleaners and test strips.

Filter cleaner and test strips

Sources

Not in sources: no model/model-year fitment in sources; Unicel lists no OEM part number for this brand entry.