This 3" x 3" x 1-1/4" NPT cast iron wye y strainer mueller steam style is a filter/regulator used in industrial equipment. It conditions compressed air or hydraulic fluid by removing contaminants, adding lubrication, or regulating pressure to protect downstream components. Key specifications noted on this listing include NPT. It is commonly used in pneumatic FRL (filter-regulator-lubricator) assemblies and compressed air systems.
