Coleman Spas OEM 100593 spa filter (C-8450)

Coleman Spas

Replacement numbers

Unicel C-8450, Pleatco PCS50N

Fits Coleman Spas OEM 100593, 3301-2261.

Diameter 8" (203 mm)Length 9" (229 mm)50 sq ft

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UnicelC-8450
PleatcoPCS50N (Spec table PDF p.35: PCS50N, 8" x 9", 2-1/8" open, 2" slip, 50 sq ft, OEM 100593 and 3301-2261.)
FilburFC-3310
Top2-1/16" (52 mm) / open
Bottom2" male slip fitting
Ø 8" (203 mm)9" (229 mm)Side view · end views belowTopBottom
Top: 2-1/16" (52 mm) / open
Bottom: 2" male slip fitting
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. 50 sq ft media.

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For Coleman Spas, C-8450 cartridge (OEM 100593) sits in Coleman Spas. The cross-reference prints OEM 100593, 3301-2261; Unicel C-8450; Pleatco PCS50N; Filbur FC-3310. 8" across, 9" long, top 2-1/16" / open, bottom 2" male slip fitting, 50 sq ft.

Catalog note for 100593: Coleman's 50 sq ft slip cartridge. The note under Unicel's row says the model is dated after 1992. OEM numbers are 100593 and 3301-2261. The spec table gives 8" x 9", a 2-1/16" opening, a 2" male slip, 193 pleats, 3 oz and 50 sq ft. Pleatco PCS50N prints the opening as 2-1/8" and lists both OEM numbers. Filbur repeats the after-1992 note. Maax lists 100593 and does not repeat that date.

C-8450 (OEM 100593), Pleatco side: Spec table PDF p.35: PCS50N, 8" x 9", 2-1/8" open, 2" slip, 50 sq ft, OEM 100593 and 3301-2261..

100593, Filbur note: Coleman section PDF p.16: FC-3310, 8 x 9, 2-1/16" open, male slip, OEM 100593, PCS50N, C-8450, 50 sq ft, model dated after 1992..

Hold C-8450 next to C-8475 differs by Unicel C-8475, Pleatco PCS75N, Filbur FC-3320, 13" long, 75 sq ft, OEM 100594, note says Coleman's 75 sq ft slip cartridge, the longer partner of OEM 100593. Unicel's note says the model is dated after 1992. OEM numbers are 100594 and 3301-2262. The spec table gives 8" x 13", a 2-1/16" opening, a 2" male slip, 197 pleats and 75 sq ft. Pleatco PCS75N prints a 2-1/8" opening. A 2" slip is not the 2" MPT used on 7CH-322, 7CH-402 or 7CH-502.; 7CH-40 differs by Unicel 7CH-40, no Pleatco number, Filbur FC-0435, 7" diameter, 9-3/4" long, top semi-circular handle, bottom 1-1/2" male thread/MPT, 40 sq ft, OEM 100433, note says This is the 1-1/2" MPT half of the 7" x 9-3/4" pair. Unicel prints OEM 100433 and 3301-1019. The spec table gives 178 pleats, 3 oz and 40 sq ft, and that line also names Vita Spas. Filbur's Coleman section prints FC-0435, OEM 100433, cell PCS40P, 40 sq ft. Pleatco's Unicel cross-reference has no 7CH-40 line..

Left blank on purpose: Opening 2-1/16" (Unicel and Filbur) versus 2-1/8" (Pleatco). The after-1992 note is on the Coleman row. Maax's copy of OEM 100593 does not repeat it. No model name..

Source locations for this Coleman Spas row: Unicel 2026 Replacement Guide on C-8450 (Coleman OEM block PDF p.32: 100593 and 3301-2261 = C-8450, 50 sq ft, 8" x 9", 2" male slip, note "Model dated after 1992." Spec table PDF p.20 (printed p.16): 2-1/16" open, 193 pleats, 50 sq ft.). Pleatco 2023 Catalog on C-8450 (Spec table PDF p.35: PCS50N, 8" x 9", 2-1/8" open, 2" slip, OEM 100593 and 3301-2261, 50 sq ft). Filbur Catalog & Reference Guide on C-8450 (Coleman Spas section PDF p.16: FC-3310, OEM 100593, PCS50N, C-8450, 50 sq ft, model dated after 1992).

If you know the Coleman Spas model and not the part number, use the Coleman Spas filter by model and year lookup.

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-8450 number is also on the Maax Spas page.

Other Coleman Spas cartridges

All 12 Coleman Spas spa filters

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Sources

Not in sources: Opening 2-1/16" (Unicel and Filbur) versus 2-1/8" (Pleatco). The after-1992 note is on the Coleman row. Maax's copy of OEM 100593 does not repeat it. No model name..