Honda Civic CRX B16 B18 Si B20 Red Fuel Pressure Gauge Liquid Filled 0-100 PSI 100% Stainless Steel Casing And Brass Internals 1/8" NPT Connector, 1-1/2" Diameter Gauge Size 0-100 PSI Pressure Range, ANSI Grade Accuracy within 2% Liquid Filled for Vibration Dampening and Durability Highly Accurate and Shock Resistance,Easy Installation