The Keystone 26 in. wall sleeve for through-the-wall air conditioners should be securely fastened within a wall opening before installing the air conditioner. The sleeve helps bear the weight of the air conditioner while keeping it insulated and safe from dust, bugs and other debris that could get sucked into it. Inclement weather, corrosion and other elements cannot match the protective power of this metal sleeve.Bears the weight of the AC while keeping it insulatedKeeps AC safe from dust and bugs that may get sucked by the ACDurable sleeve is weather- and corrosion-resistant26 in. wall sleeve to be used with through-the-wall air conditionersInstall wall sleeve in pre-cast concrete or masonry wallsWall sleeve to be securely fastened to wall opening before installing air conditionerHelps bear the weight of the air conditionerHelps insulate the air conditionerProtects the air conditioner from dust, bugs and other debris that could get sucked into itAll metal construction withstands inclement weather, corrosion and other elementsCompatible with: KSTAT08-1C, KSTAT10-1C, KSTAT10-2C, KSTAT12-1C and KSTAT12-2C SpecificationsAC Parts & Accessories Type: AC Remote ControlsBrand/Model Compatibility: through-the-wall air conditionersHVAC application: Air ConditioningPack Size: 1Product Weight (lb.): 28 lbReturnable: 60-DayManufacturer Warranty: 1 year limitedProduct Depth (in.): 17.5 inProduct Height (in.): 15.25 inProduct Width (in.): 25.5 in100% Customer Satisfaction Guarantee Customer satisfaction is our number one priority! As long as you are happy with your purchase, it would mean a lot to us if you could leave us a positive feedback to let us know that we are doing a good job. If there are any problems with your purchase, please contact us first and we will resolve the issue for you. Shipping Free Shipping Within The USWe ship our merchandise directly to you for FREE from different warehouses across the United States.International ShippingWe ship internationally through eBay's global shipping program. therefore international shipping charges are set by eBay and not by us. If you are an international buyer, you can view the final charges when you confirm your delivery details at checkout, before you pay. Electrical Items Disclaimer These products are manufactured according to the specifications of the US Electrical Standards and codes. If you purchase this product to use in a country outside of the United States we cannot guarantee it will work properly. We assume no responsibility if the item malfunctions or causes an accident because you tried to use the product with foreign electrical standards. The use with a converter or other voltage transforming device is at your own Risk. Please Note: Products are designed and rated for use in the US using 120 volt current. With or without a transformer, this product is not recommended for use outside the US.