As an Amazon Associate, we earn from qualifying purchases. MP4X1-1/2X4X4FT-TF-BFR-E-E12, Multi-Power Cylinder, Recommended Minimum Pressure: 20 psi, Bore: 4 in, Stroke: 1 in Fabco . MP4X1-1/2X4X4FT-TF-BFR-E-E12 Gallery Attributes Brand name, Manufacturer name, ManufacturerFabco