1,Name : type pneumatic plastic muffler 2,thread size:M5,1/8",1/4",3/8",1/2",3/4",1" Specifications1,Best quality control 2,Competitive price 3,Fast lead time 4,Good after-sales service 5,Strong packing to protect goods from damage. Series Plastic MufflerCodeScrew Thread SizeS(mm)11/8”1621/4”2033/8”2441/2”2463/4”4871”48