Baker Instruments AVND Series Stainless Steel Dual Scale Pressure Gauge, 0 to 200 psi / kPa, 4.5" Dial, +/-1% Accuracy, 1/4" NPT Bottom Mount 4.5" diameter dial pressure gauge Corrosion resistant stainless steel case and ring, plastic lens Brass Bottom mount 1/4" male NPT connection Bold black and red numerals and graduations Adjustable black indicator