Dimension One Spas OEM 1561-00 spa filter (C-7367)

Dimension One Spas (SpaBerry)

Replacement numbers

Unicel C-7367, Pleatco PDO75-2000

Fits Dimension One Spas OEM 1561-00.

Diameter 7-1/8" (181 mm)Length 10-1/2" (267 mm)75 sq ft4 models listed

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UnicelC-7367
PleatcoPDO75-2000
FilburFC-3059
Topclosed w/ Y stand-offs
Bottom2" (51 mm) / open w/ twist lock
Ø 7-1/8" (181 mm)10-1/2" (267 mm)Side view · end views belowTopBottom
Top: closed w/ Y stand-offs
Bottom: 2" (51 mm) / open w/ twist lock
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. 75 sq ft media.

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For Dimension One Spas, C-7367 cartridge (OEM 1561-00) sits in Dimension One Spas (SpaBerry). The cross-reference prints OEM 1561-00; Unicel C-7367; Pleatco PDO75-2000; Filbur FC-3059. 7-1/8" across, 10-1/2" long, top closed w/ Y stand-offs, bottom 2" / open w/ twist lock, 75 sq ft.

Catalog note for 1561-00: Unicel and Filbur both flag this for Dimension One 75 models dated after 2000. Pleatco prints the size as 7-1/4" x 10-5/8" (castle top, open with twist lock) against Unicel's 7-1/8" x 10-1/2".

Model list attached to C-7367 cartridge (OEM 1561-00): Dimension One 75 (SpaBerry), years models dated after 2000, listed by Unicel 2026 Replacement Guide (Unicel and Filbur); Dimension One 75; @Home Hot Tubs, no year range printed, listed by Pleatco 2023 Catalog (Pleatco spec table, OEM 1561-00); Dimension One spas (universal EZ twist-lock filter), years 2000–current, listed by Hot Tub Outpost OEM listing; @Home spas, years 2000 and newer, listed by Hot Tub Outpost OEM listing.

C-7367 is easy to confuse on the Dimension One Spas table. 7CH-552 differs by Unicel 7CH-552, no Pleatco number, no Filbur number, 7" diameter, top semi-circular handle, bottom 2” male thread/MPT, 52 sq ft, OEM 1561-10, note says Unicel's Dimension One cross reference rates 1561-10 / 7CH-552 at 75 sq ft, but Unicel's own spec table rates 7CH-552 at 52 sq ft (7" x 10-1/2", 2" MPT, semi-circular handle), and both retailer listings (Hot Tub Outpost and SpaStore) give 52 sq ft at 7" x 10-1/2" with a 2" MPT bottom; 52 is shown. Both retailers name Pleatco PTL55XW-F2M and Filbur FC-0465 as equivalents, but the Pleatco 2023 catalog lists PTL55XW-F2M among its deactivated part numbers with no replacement (PDF p.24) and the Filbur catalog does not list FC-0465, so neither is shown as a current equivalent. Hot Tub Outpost lists the 1994 Arena and Diamante under this part, while its 01561-03 listing also names the 1994 Arena and Diamante; check the old cartridge.. 7CH-975 differs by Unicel 7CH-975, Pleatco PDO75P3, Filbur FC-0475, 7" diameter, top semi-circular handle, bottom 1-1/2" SAE thread, OEM 1561-12.

Where those figures are printed: Unicel 2026 Replacement Guide on C-7367 (OEM cross reference (Dimension One Spas section), PDF p.34 (printed p.30); spec table PDF p.18 (printed p.14)). Pleatco 2023 Catalog on C-7367 (Unicel-to-Pleatco cross reference, PDF p.47 (C-7367 = PDO75-2000); spec table PDF p.34 (OEM 1561-00, Dimension One 75, @Home Hot Tubs)). Filbur Catalog & Reference Guide on C-7367 (Product by Pool/Spa Manufacturer (OEM), Dimension One Spas, printed p.33 (PDF p.17)). Hot Tub Outpost (retailer OEM listing) on C-7367 (01561-00: 7-1/8" x 10-1/2", closed castle top, 2" open bottom with EZ twist lock, 75 sq ft; universal filter for 2000-current models, also @Home spas 2000 and newer; fits filter screen 01510-501).

Hot tubs listed for this cartridge

The rest of the Dimension One Spas model list is the Dimension One Spas filter by model and year lookup.

Model / systemYearsListed by
Dimension One 75 (SpaBerry) (Unicel and Filbur)models dated after 2000Unicel 2026 Replacement Guide
Dimension One 75; @Home Hot Tubs (Pleatco spec table, OEM 1561-00)not givenPleatco 2023 Catalog
Dimension One spas (universal EZ twist-lock filter)2000–currentHot Tub Outpost OEM listing
@Home spas2000 and newerHot Tub Outpost OEM listing

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.

Other Dimension One Spas cartridges

All 12 Dimension One 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