3M EF200XXLB Black Framed Anti-Glare Filter for Standard CRT/LCD Desktop Monitor fits 19" - 21" CRTs and 19" - 20" LCDs. Unique two-sided anti-glare coating significantly reduces glare. Reduces ELF / VLF E-field radiation and static when properly grounded. Light tint glass provides sharper text and more accurate color representation. Available in flat frame design. High Quality - Proudly made in the U.S.A.