The Keystone 10，000 BTU slider/casement room air conditioner is perfect for cooling your rooms up to 450 sq. ft. Designed specifically for horizontal slider or casement windows this unit is the perfect solution for homes without traditional double-hung windows. 3 fan speeds and a 4-way air direction control means you can quickly cool your room or maintain comfort where needed. The unit also comes with built-in Dehumidification capabilities of removing 1.1 liters per hour. The slide-in/slide-out washable filter removes dust and odors， and with the built-in filter indicator， the unit will let you know when it's time to clean. Sleep mode keeps you cool and comfortable without keeping you awake. A programmable timer assures that you can have the unit cool during the hottest parts of the day and the energy saver mode gives you peace of mind knowing your home is comfortable， without breaking the bank.

Convenient Cooling: This Keystone air conditioner fits your standard sliding and casement windows. It's a reliable choice for apartments， bedrooms， living rooms， home offices， or attics. It is rated 10，000 BTUs and best used in a room up to 450 square feet.

Maximum Comfort: Featuring 3 cooling modes， 3 fan speeds， 4-way adjustable air louvers and a programmable timer. Aside from cooling， 0.9 pints of moisture from the air is removed every hour with the efficient built-in dehumidification system.

Control Your Comfort: 4-way air direction control allows you to direct the air where you need it most for optimal comfort.

Powerful Cooling on a Budget: Our Energy Star certified AC will give your electric bill a break by using the 'Energy Saver' or Sleep' mode. These smart features automatically program your unit to use less energy while providing the same amount of comfort.

Easy to Use: Designed with a removable chassis so you can install them either in a window or through an exterior wall. An adjustable window kit is included for convenient installation. Minimum window height: 21.3"; Minimum to Maximum window width: 15.5" - 16.3"

Energy saver mode conserves energy and lowers your environmental impact without impacting your comfort

Sleep mode lets you have a cooling sleep without keeping you awake

Slide-in/slide-out washable mesh filter removes dust and airborne particles from the air

Check filter indicator lets you know when it's time to wash your filter

Dehumidifies up to 1.1 L per hour

Easy to use installation kit included

Minimum window height: 21.3 in. minimum to maximum window width: 15.5 in. - 16.3 in.