uxcell 3/4" Thread Black Plastic Muffler for Air Compressor Item Name : Compressor Silencer;For : Air Compressor Thread Outside Diameter : 3/4";Connector Hole Diameter : 1/2" Size : 3 3/4" x 1 1/2" (Max.Dia. x Thickness);Color : Black Material : Plastic;Weight : 90g Pacakge Content : 1 x Air Compressor Silencer Filter