Armstrong Ceilings 24-in x 24-in Optima 12-Pack White Textured 15/16-in Drop Acoustic Panel Ceiling Tiles Cottage Style High-efficient 71% AFUE heats approximately

High-efficient 71% AFUE heats approximately 575 sq

Rustproof Color Black Returnable 180-Day Product Weight (lb

Will not stain when used as directed

Clear glass sliding doors on premium rolling hardware

Gray finish

Armstrong Ceilings 24-in x 24-in Optima 12-Pack White Textured 15/16-in Drop Acoustic Panel Ceiling Tiles Cottage Style High-efficient 71% AFUE heats approximatelyMold, mildew and sag resistance Smooth, clean, durable finish washable, impact resistant, scratch resistant, soil resistant Acoustical (NRC=0. 95, AC=190) High light reflectance Covers 48 sq ft per carton (12 pieces per carton) Installs in Armstrong Prelude 15 16 in grid system Tegular edge detail (minimizes grid look) Class A fire rating Common size: 24 in x 24 in x 1 in Features Collection Name Optima Actual Length (Inches) 23. 562 Actual Width