
Booth brand • Marathon Finishing
Marathon Finishing Paint Booth Filter Fitments
Marathon Finishing builds a wide range of paint booths and finishing equipment from prep stations through full-production downdraft configurations. The Prep Pro series scales from compact (Prep Pro 2000) to high-throughput (Prep Pro 6000); the SPB Small Parts Booth family covers small-component finishing in standard, downdraft, filtered, and filtered-downdraft variants. The airflow-design series covers six distinct booth-airflow configurations. Documentation downloads on the Marathon site are form-gated; our verified fitments come from authorized-distributor parts cross-references with capture data shipping in every order.
Quick answer
Marathon Finishing, US-origin paint-booth and finishing-equipment manufacturer, covers the Prep Pro series (6000, 4000, 2000, plus downdraft variants), the SPB Small Parts Booth family, and a full airflow-design lineup spanning full downdraft, reverse airflow, side downdraft, modified downdraft, front airflow, and open face configurations. Documentation is form-gated; verified fitments come from authorized-distributor parts cross-references.
How shops choose Marathon Finishing filters
Marathon's airflow-design variations mean filter selection differs meaningfully across the catalog, full downdraft uses ceiling-diffusion intake plus exhaust-pit arrestor media; reverse airflow flips the pattern; side downdraft uses side-wall intake; modified downdraft uses a hybrid configuration; front airflow uses front-wall intake; open face uses front intake with rear extract. Each airflow design has its own filter-slot dimensions and media-class profile. The SPB family adds prep-station-specific filter handling. The Prep Pro series uses prep-station downdraft configurations. The catalog separates fitments by airflow design plus model series; identify yours from the nameplate.
Regulatory landscape
Marathon installations face standard US regulatory layers, state DEP authority plus regional AQMDs, plus federal OSHA spray-finishing standards. Marathon's full-downdraft and side-downdraft production booths in industrial finishing operations may carry NESHAP applicability depending on the coatings sprayed; the catalog separates aerospace-rated kits from collision and standard-industrial kits explicitly.
Who runs Marathon Finishing booths
Marathon installations concentrate across three populations. First, prep-station-heavy operations using the Prep Pro series for color-changeover-intensive shops. Second, full-production collision and industrial finishing using the airflow-design series in whichever configuration matches the shop's space and throughput requirements. Third, small-parts and component finishing using the SPB family, typically in industrial, equipment-coating, or specialty-product applications.
Marathon Finishing filter FAQs
How do I identify which Marathon airflow design my booth uses?
The Marathon nameplate typically indicates the airflow configuration (full downdraft, reverse airflow, side downdraft, modified downdraft, front airflow, open face) along with the model series. The Filter Finder accepts a photo of the nameplate plus four interior shots for verified-fitment matching.
What's the difference between Prep Pro 6000 and Prep Pro 2000?
Prep Pro 6000 is the high-throughput configuration with larger interior dimensions and proportionally larger filter slot counts. Prep Pro 2000 is the compact prep-station configuration. The 4000 sits between them. The downdraft variants (4000D, 2000D) add downdraft airflow handling. The catalog separates fitments accordingly.
Do you stock fitments for the SPB Small Parts Booth family?
Yes. SPB 76, 52, and 30 in standard, downdraft, filtered, and filtered-downdraft variants all have verified fitments. The interior dimensions and filter slot counts vary across the variants; the catalog separates them.
How often should I replace filters on a Marathon full downdraft?
Industrial finishing on a Marathon full-downdraft booth typically runs intake every 30-50 days and exhaust every 75-110 days under normal volume. Higher-throughput production compresses those numbers; engineering-spec cadences may be tighter. Subscriptions auto-tune by ZIP and throughput profile.
Why are Marathon's brochures form-gated?
Marathon distributes brochures through a form-submission system on their website rather than as direct PDF downloads. Our verified fitments come from authorized-distributor parts cross-references and any brochure data we've collected through dealer relationships; capture data ships with every order.
Where can I find Marathon installation manuals?
Original installation manuals shipped with each booth carry the manufacturer-published specs. Marathon's distributor network can route replacement documentation requests for shops that have lost the originals. Our filter purchases include the relevant capture-efficiency data for your verified booth model.
Sources
Primary references cited on this page.
- Marathon Finishing Systemshttp://marathonspraybooths.com/
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Pick your booth
Which Marathon Finishing model do you have?
Click the booth that looks like yours to see its filter kit. Not sure? Match the airflow direction in the diagram against your booth.

DowndraftFull Downdraft
Downdraft

DowndraftSPB-76FD
Downdraft

DowndraftSPB-52D
Downdraft

Prep stationPrep Pro 4000D
Prep station
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