Blowtherm / GFS Paint Booth Bag Filter – High-Capacity (6 Pocket, 2/Set)
The Blowtherm Paint Booth Bag Filter is a high-performance solution for shops requiring superior pre-filtration and exhaust efficiency.1 Engineered specifically for Blowtherm 7.5 Meter and 8 Meter Extended Paint Spray Booths, these filters utilize a 6-pocket design to maximize surface area and airflow.2
Crafted with high-density dual-ply polyester media, these paint booth pocket filters are built to capture heavy overspray and fine particles, protecting your secondary filtration layers and exhaust fans from premature loading.
Specifications
| Feature |
Details |
| Common Search Terms |
Blowtherm Bag Filter, 23-Bag Filter, Pocket Pre-filter |
| Dimensions |
23.25″ x 47″ x 8″ |
| Pocket Configuration |
6 Pockets per filter (Sold as 2-Filter Set) |
| Header Construction |
Rigid Galvanized Steel Header |
| Media Type |
Dual-Ply Synthetic Polyester |
| OEM Compatibility |
Blowtherm (PBRH, PFAH, PB1 Series), GFS, and Global Finishing |
Why Professionals Choose These Pocket Filters
1. Engineered for High-Capacity Holding
Traditional flat filters clog quickly. These paint booth bag filters feature deep, aerodynamically shaped pockets that allow paint solids to settle at the bottom while maintaining clear airflow through the sides.3 This “V-pocket” technology allows for a significantly higher holding capacity, reducing the frequency of filter changes.
2. Precision Fit for Blowtherm & GFS Systems
Finding the right Blowtherm paint booth parts can be difficult. Our 23.25″ width is a precision match for European-style booth frames, including the PBRH and PFAH pre-filter pocket series. The galvanized steel header provides the rigidity needed to prevent “blow-by”—ensuring a 100% seal so no unfiltered air bypasses the system.4
3. Protection for Downstream Components
Using high-quality pre-filter pockets is the most cost-effective way to extend the life of your expensive ceiling filters and exhaust motors. By capturing up to 95% of larger particles at the intake or exhaust stage, you prevent dried paint “fines” from unbalancing your fans or contaminating your finish.
Expert Insights: Maximizing Filter Efficiency in 2025
The Importance of Static Pressure Monitoring
In modern high-production shops, relying on a visual check isn’t enough. For Blowtherm paint booth filters, we recommend a change-out when the differential pressure increases by 0.15″ to 0.20″ w.g. over the initial clean-filter reading. This ensures your booth maintains the laminar airflow required for “mirror-like” finishes.
Installation Pro-Tips
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Pocket Orientation: Ensure the pockets are hanging vertically (up and down) rather than horizontally. This allows gravity to pull captured overspray to the bottom of the pocket, preventing airflow restriction.
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The Compression Check: When installing the galvanized header into the Blowtherm booth frame, ensure the gasket is compressed evenly to prevent air leaks that lead to “trash” in the paint.
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Storage: Always store your 23-bag filters in their original packaging in a dry area. Moisture can affect the electrostatic charge of the polyester media, reducing its efficiency.
