Fan Filter Assemblies
Plastic Fan Guards and Filter Assemblies
For 1.5", 2.5", 3.125", 3.625" & 4.5" Fan Sizes
The filter assembly allows free passage of air with minimum air resistance and pressure drop. When the filter media requires maintenance you simply remove the snap-fit retainer to clean or replace the filter, leaving the guard attached to the fan. This assures protection to the fan blades and eliminates damage to the fan during cleaning.
MEDIA
- Polyurethane foam, allows free passage of air with minimum resistance and pressure drop
- High surface-area contact for impingement of dust particles
- 30PPI (pores per inch) material gives a wide range of particle filtration
- Helps reduce external fan noise
- Easily cleaned by vacuuming or washing with mild soap, detergent of cleaning solvent
GUARD / RETAINER
- Material: ABS, UL rated 94V-0
- 0.250" (6,35mm) maximum ring spacing
- Decreased noise due to design
- Withstands high impact
Availability is from stock through Keystone's Global Distributor Network. Application engineering services are available to meet special customer requirements.
Refer to Keystone's Product Design Guide M60 for our complete product offering and specifications.

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