1 in x 2 ft x 2 ft Armstrong Calla 15/16 in Square Tegular Panel / White - 2822
3/4 in x 2 ft x 2 ft Armstrong Optima 15/16 in Square Lay-In Panel / White - 3150
3/8 in x 2 in x 2 in SLP Thincell TC Economy Eggcrate Plastic Cube Louver / White