Wire Mesh Guard for 172mm Fan Part Nos. WMG172M, WMG172B 2-ø4.3±0.2 ø150 8.5 4.75 6.5±1 10557 Metric Drive Dallas, Texas 75243 214-340-0265 4.15 Part No. Description WMG172M Aluminum Fan Filter, mill finish WMG172B Aluminum Fan Filter, black finish WMG172M/PK 10-pack mill finish Aluminum filter, boxed WMG172B/PK 10-pack black Aluminum filter, boxed OrionFans.com RoHS Compliant Information and data is subject to change without prior notification.