These NSF certified gauges are manufactured in accordance with NSF/ANSI 61, for lead-free content, and come in a wide range of models, sizes and configurations. The gauges have special dials with NSF logo on the dial to indicate compliance. These NSF gauges are available in custom versions and configurations. Call our application specialists to find out about custom versions of the gauge. The only line of NSF certified gauges in the market made in the USA special lead-free, silver-solder for all wetted parts.