These sanitary pressure gauges are engineered to meet stringent performance and material demands within dairy, food, chemical, biotechnology and pharmaceutical environments. They are designed and manufactured to meet 3A Standard Number 74-02. Features include: case sizes 2½ in. or 4 in.; diaphragm seal fitting connections standard in 316L SS with 1½ in., 2 in. and ¾ in. Tri-Clamp sizes.