Available in 1/4" NPT or 1/2" NPT, in porosities suitable for Air/Gases, Water/Light Oil or Heavy Oil, Merit's ACB Series brass pressure snubbers are designed to slow the ingress of the process media to prevent potential damage to the pressure instrument by limiting hydraulic shock. Hydraulic shock can occur when a pressure surge or wave is caused by a fluid in motion (usually a liquid, but can also be caused by a gas) is forced to suddenly stop such as when entering a pressure gauge or other pressure measuring instrument.