Master Spas spa filter (C-7330)

Master Spas Eco-Pur Micro Filter (2002-2005)

Replacement numbers

Unicel C-7330, Pleatco PMA30-2002-R

Fits Master Spas Eco-Pur Micro Filter (2002-2005).

Diameter 7" (178 mm)Length 7-1/4" (184 mm)30 sq ft1 model listed

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UnicelC-7330
PleatcoPMA30-2002-R
FilburFC-1003
Top4-1/8" (105 mm) / open
Bottom4-1/8" (105 mm) / open
Ø 7" (178 mm)7-1/4" (184 mm)Side view · end views belowTopBottom
Top: 4-1/8" (105 mm) / open
Bottom: 4-1/8" (105 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. 30 sq ft media.

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Master Spas files this cartridge as C-7330 cartridge, in the Master Spas Eco-Pur Micro Filter (2002-2005) group. Numbers on the row: Unicel C-7330; Pleatco PMA30-2002-R; Filbur FC-1003. 7" across, 7-1/4" long, top 4-1/8" / open, bottom 4-1/8" / open, 30 sq ft.

What the sources add about PMA30-2002-R: Unicel: part of Eco-Pur filtration system, 2002 to 2005.

Model list attached to C-7330 cartridge: Eco-Pur filtration system, years 2002–2005, listed by Unicel 2026 Replacement Guide.

Before ordering C-7330, compare it with 7CH-322 differs by Unicel 7CH-322, Pleatco PAS35-F2M, Filbur FC-0420, 8" long, top semi-circular handle, bottom 2” male thread/MPT, 32 sq ft, note says Unicel: replacement for 7" or 8" OD Eco-Pur systems; remove black stand pipe for 8" OD; and C-8341 differs by Unicel C-8341, Pleatco PMA45-2004-R, Filbur FC-1007, 8" diameter, 6-3/4" long, top 4" / open w/ raised ring, bottom 4" / open w/ raised ring, 40 sq ft, note says Unicel: part of Eco-Pur filtration system, 2006 to present; two 40 sq ft cartridges required.

Left blank on purpose: Unicel lists no OEM part number for this brand entry.

Pages checked for PMA30-2002-R: Unicel 2026 Replacement Guide on C-7330 (OEM cross reference (Master Spas section), PDF p.45 (printed p.41); spec table PDF p.14 (printed p.10)). Pleatco 2023 Catalog on C-7330 (Unicel-to-Pleatco cross reference, PDF p.47). Filbur Catalog & Reference Guide on C-7330 (Product by Pool/Spa Manufacturer (OEM), Master Spas, printed p.43 (PDF p.22)).

Hot tubs listed for this cartridge

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

Model / systemYearsListed by
Eco-Pur filtration system2002–2005Unicel 2026 Replacement Guide

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. Brand notes: Master Spas Eco-Pur filters. Number formats: how Filbur, Unicel and Pleatco numbers compare.

Other Master Spas cartridges

All 13 Master 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: Unicel lists no OEM part number for this brand entry.