Lyndahl LK0240 Keystone, dummy cover, BlackLyndahl LK0240 Keystone, dummy cover, in Black. The housing, Lyndahl quality, is handy and has a long-life design and is easy to install.The keystone adapters are 14.5 mm wide on the front and 16.0 mm high and can be used in any commercially available keystone frames without tools. The components lock securely in place.
