KEYSTONE Series of air-flow, fan-guard/filter assemblies protect sensitive PCs and a host of electronic apparatus, switching equipment, telecom panels and other devices. The durable, sturdy multi-element assemblies deliver a consistent, 24 CPM air flow, improved particle security and minimized fan noise. Products are manufactured from high strength, glass-filled nylon while the media filters are made from polyester foam plus aluminum screens. Size availabilities range from 1.5” to 4.5” diameters.
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