• White • Durable Metal Sleeve Provides An Extra Layer Of Insulation And Protection From Dust, Bugs, Corrosion etc. • Wall Sleeve Should Be Securely Fastened Within A Wall Opening Before Installing An Air Conditioning Unit • Suitable For Danby 10,000 BTU And 12,000 BTU Through-The-Wall Air Conditioners (DTAC100B1WDB & DTAC120B1WDB) • 24W x 20.28D x 14.65"H • Mfg #DSL100F1W