Exhaust noise from pneumatic or hydraulic systems can get pretty loud, especially on smaller ported components. A 3/8 muffler like this one from Allied Witan threads onto the exhaust port and knocks that noise down to a manageable level. Real common application is on directional control valves and cylinders where you've got a 3/8 NPT exhaust port that needs quieting without restricting airflow too much.
Answer by: Customer Support on Aug 23, 2025, 9:51 PM
got an old muffler stamped 0155038. is this the same one or am i fixin to order the wrong part
Question by: Lyle R on Mar 24, 2025, 8:59 PM
Match-up is by the supplier part number. This Allied Witan muffler is supplier part no. 0155038, so it lines up with a muffler marked 0155038.
Answer by: Customer Support on Mar 26, 2025, 11:52 AM
got a muffler here marked 0155038, is this the same Allied Witan 3/8 one?
Question by: Daryl H on Nov 27, 2025, 9:18 AM
Match it up by the supplier part number. This product is an Allied Witan Co muffler with supplier part no. 0155038, listed as a 3/8 muffler.
Answer by: Customer Support on Nov 29, 2025, 6:40 AM
Will this thing fit on any standard 3/8" threaded port, or is there somethin' special about it?
Question by: Marvin M on Jul 2, 2025, 4:04 PM
This muffler uses a standard 3/8" thread, so it should fit any compatible port.
Answer by: Customer Support on Jul 4, 2025, 11:15 AM
part number on this is 0155038, that match up with the Allied Witan 3/8 muffler y'all got listed here?
Question by: Ronnie H on Oct 15, 2025, 2:01 PM
Yes, supplier part number 0155038 is exactly what this product is. It comes from Allied Witan Co and carries the 3/8 size designation, so if that number is what you pulled off your old unit or a parts list, you're looking at the right item.
Answer by: Customer Support on Oct 16, 2025, 7:50 PM
