Keep Comfortable At Home The DuraComfort brand was created for home life specifically , dedicated to improving the quality of life and making life more comfortable and environmentally friendly. Owning it will keep you cool all summer. DuraComfort Counterclockwise Threaded Exhaust Hose Tips 1:Before you buy, please measure the original hose diameter. Tips 2:Make sure it is a counterclockwise thread direction. Easy To Install Step 1: Fully expand the end of the hose. Step 2: Rotate the connector counter clockwise to the hose. Step 3: Rotate the hose counter clockwise to the machine. More Malleable And Flexible Better malleability allows it to be used as you like in more spaces. Safer material Environmentally friendly materials is more safer which has no peculiar smell, and is more healthy for your body. Good Heat Resistance Better heat resistance can export heat more efficiently，let the room cool down quickly.