PF17.0 fits standard desktop LCD monitors with a diagonally measured 17.0 viewable screen. Actual filter dimensions are 10 11/16 high x 13 5/16 wide. This filter is designed for standard LCD monitors that appear more square than rectangular and have a 4:3 aspect ratio. Reversible for either glossy or matte screen finish. Protects fragile LCD screens from scratches and abrasions. Utilizes 3M's micro louver privacy technology so only persons directly in front of the monitor can see the image on screen.