The ecommerce arm of WERCS Inc, a paint booth service company in Kalama, Washington.

Category · 280 SKUs

AMU pre-filters

First-stage filtration on the air make-up unit. Protects the heated air supply from dust and fiber load.

  • 130 sizes
  • from $20.77
  • 11 ship from stock in Kalama, WA
  • Order by 4 PM Pacific for same-day processing

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Sorted by availability, then by how the fit was verified, strongest first.

Quick answer

AMU pre-filters: First-stage filtration on the air make-up unit. Protects the heated air supply from dust and fiber load. Typical replacement cycle: 30-90 days under normal load. 280 SKUs available across 8 media types. Suppliers in this catalog: AFC, AFT / Filtration Group, Viledon, afc and 3 more.

By Ben Kurtz · Fitment reviewer, 20 years in paint booth service · Updated Sep 22, 2026

Frequently asked

What is amu pre-filters?
First-stage filtration on the air make-up unit. Protects the heated air supply from dust and fiber load.
How often do amu pre-filters need replacing?
Typical cycle: every 30-90 days under normal shop load. Heavy production shops on the short end of the range, light-volume shops on the long end. Pressure-drop monitoring (manometer reading) is the most reliable replacement signal beyond calendar cycle.
How many amu pre-filters SKUs does BoothFilterPro carry?
280 SKUs currently catalogued in amu pre-filters, primarily amu pocket bag pre-filter (160 SKUs). Filter by supplier or dimensions on each SKU detail page for fit-checking. Multi-source-verified SKUs (cross-referenced across 2+ catalog years) appear first in the grid.

Sources

Primary references cited on this page.

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