Features:
1. Easy & simple to clean & change.
2. Easy to install, no need to remove fan or guard.
3. Decreasing noise level while creating low air restriction.
Specification: 1. Material: (1) Guard: palastic UL 94V-0. (2) Media: PU foam 30 ppi. 2. Size: 123.5mm x 123.5mm. 3. Height: 5mm+/-0.2mm. 4. Hole diameter: 4.5mm.