Para-Lite 3 consists of small (3/4" x 3/4" x1/2") sized cells that provide a low, comfortable, brightness look. This is the only louver of its kind to have a 110 degree angle of light. Its unique double wedge design makes this louver today's answer for achieving high efficiency while utilizing plastic parabolic design. This louver is 23 3/4" x 47 3/4" and its finish is specular silver. This louver is easy to install. Options: 23 3/4" x 23 3/4" size, 11 3/4" x 47 3/4" size, Molded to Flange 19 11/16" x 43 1/2" (i.d. and 22 1/2" x 46 1/2" (o.d.). Prices are based on minimum order of 20 pieces. Please call to receive special pricing and freight charges.