uxcell 1/8BSP Thread Pneumatic Air Breather Silencer Muffler 4pcs Product Name : Pneumatic Breather Muffler;Thread Diameter : 10mm/1/8BSP Total Size : 12x12mm /0.5"x0.5"(L*Max.W);Thread Length : 7mm/0.28" Filtering Element : Sintered Bronze;Material : Brass Color : Gold Tone;Net Weight : 19g Package Content : 4pcs x Pneumatic Muffler