Toshiba JK-CTA is a metal ceiling tile to be used in conjunction with the JK-HO1A interior in-ceiling housing. FEATURES: Easy ceiling tile replacement. Flame retardant metal construction. Accepts JK-HO1A in-ceiling housing. Attractive white powder coat finish. MECHANICAL SPECIFICATIONS: Size hxwxd: 23.875 inch x 23.875 inch x .5 inch. Construction: Steel with white powder coat fi nish