Soil Moisture Flow Cell used for measuring the hydraulic properties of porous materials, and the movement of chemicals in soil. Typical uses are for water-retention curves, saturated and unsaturated hydraulic conductivities, contaminant and gas transport para-meters, and for break-through curves. Interchangeable parts allow for a variety of experimental configurations. End-sections are removable and accommodate nylon membranes with bubbling pressures up to 600 mbar.