Trumpet Air Horn Cover - 3-15/16" Diameter - 304 Stainless Steel The Trumpet Horn Tube Cover fits all MaxBlast Trumpet Horns. Keeps green water and bugs from getting into the trumpet tube. Snaps over the end of the tube – no tools required. Constructed of corrosion resistant stamped 304 stainless steel. *Includes one (1) Trumpet Air Horn Cover |