Uxcell a13071000ux0441 Thread Air Compressor Inlet Filter Silencer Product name: air compressor silencer; material: metal Thread diameter: 1/2"pt; size: 14.2 x 9.7 x 7.5Cm/5.6" x 3.8" x 3" (l*d*h) Hole size: 15 x 16Mm/0.6" x 0.6"(Inner dia.*Outside dia.); main color: black 0