D0988 Pressure Gauge Gauge Type With Mini Diaphragm Seal Dial Size (In.) 2-1/2 Range 0 to 100 psi Connection Size 1/4 NPT Connection Location Lower Smallest Graduation (PSI) 1 Accuracy (%) +/-1 Case Material Polished Stainless Steel Socket Material Brass Tube Material 316 Stainless Steel Filled With Glycerin (In Seal) Lens Material Polycarbonate Ring Material Polished Stainless Steel Operating Temp Range (F) -40 Degrees to 150 Degrees Series 1009AW With Mini Seal Manufacturers War