- PF19.0W fits widescreen size desktop monitors with a diagonally measured 19" viewing screen.- Actual filter dimensions are 10.12" high x 16.18" wide.- This filter is designed for widescreen desktop monitors with screens that appear more rectangular than square.- Helps keep confidential and private information safe.- Utilizes 3M's microlouver privacy technology so only persons directly in front of the monitor can see the image on screen.- Passersby see only a dark screen.- Excellent for high traffic areas.- Reversible for either glossy or matte screen finish.- Reduces reflections when used with the matte side facing you.- Helps to protect your LCD panel from scratches and abrasions.- Easy on easy off attachment system.