Ceilume 12 pc Stratford Ultra-Thin Feather-Light 2x4 Lay in Ceiling Tiles - for Use in 1" T-Bar Ceiling Grid - Drop Ceiling Tiles (12 Tiles, White) - - Amazon.com
Armstrong CEILINGS 24 in. x 48 in. Lay-in Ceiling Tile (2400 sq. ft./pallet) 933 - The Home Depot
Ceilume 14 pc Polyline Ultra-Thin Feather-Light 2x4 Lay in Ceiling Tiles - for Use in 1" T-Bar Ceiling Grid - Drop Ceiling Tiles (White) (2 x 4) - - Amazon.com