These Labcock valves have an NSF61 PVC body with EPDM O rings. The lever handle provides precise fingertip control with a 90° turning radius. They have 1/4″ NPT threads and hose barb tapers from 3/8″ to 5/8″. Rated for full vacuum, the pressure rating is 150 psi up to 120°F for many process control monitoring and fluid sampling uses in laboratory. These valves come in 7 configurations. They can be used for chemical processing, water and wastewater. These valves are not FDA compliant.