The Grainger 3" metal hose is a flexible metal hose that can be used for conveying air, water, oil, or other fluids. It has a 3" inside diameter and is available in lengths from 25-100 feet. The hose is constructed of annular corrugated stainless steel with a braided stainless steel outer cover for strength and durability. It can withstand temperatures up to 1000°F and pressures up to 450 psi. The hose ends have welded fittings and are available in a variety of end connection styles including NPT thread, flanged, and cam & groove. This heavy duty metal hose is often used in industrial applications that require a durable hose that can handle high temperatures and pressures.