Differential Pressure Gauge, Gauge Nominal Dial Size 4-1/2 In., Basic Gauge Case Material Metal, Basic Gauge Wetted Parts PTFE / Buna-N / Viton or EPDM, Differential Gauge Connection Type FNPT and MNPT, Differential Gauge Connection Size 1/4 In., Gauge Connection Location Inline, Differential Pressure Range Units In. H2O, Differential Pressure Range Value 0 to 100, Gauge Accuracy +/-2.00 Percent, Body Material Aluminum, Gauge Primary Range Smallest Graduation 10, Diaphragm Material Buna-N Gauge Operating Temp. Range : 0 Degrees to 170 Degrees F Standards : Class 1, Groups B, C, D, Class 2 Groups E, F, G, Class 3, NEMA 7 & 9 and IP 66 Diaphragm Material : Buna-N Differential Pressure Range Value : 0 to 100 Differential Gauge Connection Size : 1/4 Scale Type : Pressure Basic Gauge Wetted Parts : PTFE / Buna-N / Viton or EPDM Basic Gauge Case Material : Metal Body Material : Aluminum Differential Pressure Gauge Type : Differential Pressure Gauge Gauge Connection Location : Inline Differential Gauge Connection Type : FNPT and MNPT Differential Pressure Range Units : In. H2O Differential Pressure Range : 0 to 100 H2O Rated Total Pressure : 1500 psi Gauge Nominal Dial Size : 4-1/2 Manufacturers Warranty Length : 5 yr. Gauge Accuracy : +/-2.00% Item : Differential Pressure Gauge Gauge Primary Range Smallest Graduation : 10 Includes : Instructions Dial Material : Stainless steel Seal Material : Buna-N, Viton or EPDM Piston Material : PTFE Country of Origin (subject to change) : India