Whip Hoses provide more flexibility and increased operator control at the gun. These hoses are especially beneficial on large jobs when spraying for long periods of time to help reduce fatigue and provide a quality finish over the course of the entire job.
Typically an airless sprayer whip hose is a slightly smaller diameter than your regular spray hose. For example, if you are spraying with a 1/4" airless hose (most common size), you would want to use a 3/16" hose whip.