A: We do not have connectors for AC portable units. Either contact Sharp for a replacement or find an after market window installation kit available online.
A: The inner spiral steel coil is strong enough for clamping. The vinyl tubing should be okay to exhaust paint fumes through.
A: You'd have to attach it with suitable tape or glue. Otherwise not likely to stay connected.
A: I have used this for dust collection. The only thing is that the wall will rip is it encounters a sharp object.
A: No. It is basically a wire spring with lightweight plastic over it. Not rigid at all.
A: If it fits, but I do not recommend it. Most room air conditioners take a 6 inch hose, but you want it INSULATED! The machines remove heat from the room and it has to go somewhere. If you have a long run to your window you will just keep circulating the heat and it will never cool the area.
A: The diameter of the hose is only 4 inches. A portable air conditioner usually has a 6 inch feed. Don't know of any coupler that would make the transition. Besides, the plastic this hose is made of is super thin and you would lose a lot of your cool air. Just wouldn't recommend it.
A: Please check the owners manual of your unit for proper ducting. This duct is designed to exhaust air at room temperatures.
A: From your question we can't identify the appliance you are connecting to. Just to note that the vinyl hose is not approved for dryer venting. It's intended use is for cold air exhaust. You should use rigid or flexible aluminum piping for dryers.
A: You just need the one. You do not want a long run because tha hose exhausts hot air and since it's not insulated you'll just be recycling hot air.