**Product Details:** - Duplex Style Hydraulic Metering Injection Pump. - Made by Neptune. - 560 Series. - Part # 568-D-N3-FA. - Features 2 Micrometer Dials With 2 Liquid Heads. - Includes 316 Stainless Steel Trim, FKM O-Rings, and PTFE Diaphragm. - 188 GPH Flow Capacity. - 350 PSI Max Pressure. - 200°F Max Temperature. - 1/2 HP Motor With 3PHS, 480V Power. - Variable Oil By-Pass Stroke Adjustment Delivers Improved Valve Performance Compared to Variable Linkage Designs. - The Motor is Completely Enclosed and Fan-Cooled. - Wear is Reduced as a Result of the Stroke Mechanism Moving Only When Adjustments Are Made.