Rol-Air U4001 Inlet Filter

Rol-Air U4001 is a steel inlet filter assembly with a replaceable element that protects your compressor by filtering intake air before it enters the pump. This 1/4-inch steel inlet filter uses a 1/4" NPT connection, aligning with Rolair’s standard thread size for intake accessories and enabling straightforward installation on compatible units. The U4001 designation is cited as interchangeable with JC800-38 in Rolair and reseller listings, signaling broad compatibility within Rolair’s intake-filter family and making it a common replacement part for models that require a robust, metal-bodied intake filter with an integrated element; its compact, steel construction is designed to fit in tight spaces while maintaining reliable filtration. Replacing the filter element as part of routine maintenance helps prevent contaminants from entering the compressor, supporting longevity and stable performance in daily operation.