Merit Instruments PHDF Series all stainless steel Differential Pressure Gauges are designed for use in the demanding process and chemical industries. Available with 4" (100mm) or 6" (150mm) dial sizes, with dry or liquid filled (glycerin or silicone) cases, the case and wetted parts are made from 316 stainless steel (diaphragm is 316L for negative pressures and 316Ti for positive pressures) and are suitable for maximum operating pressures up to 1,450 psi. For more details about this product and how to specify,  please visit our detailed information available on our Data Sheet page of this website.