Overview Reviews Product Description Inlet - Outlet: 3/8" M (NPT) Maximum Pressure: 4500 PSI Output Capabilities: 3.0 to 5.0 GPM Maximum Temperature: 190 F Hose Barb: 1/4" Orifice Diameter: 2.1mm Fixed Product Videos Custom Field Product Reviews Write a Review Write a Review × GP GP DUAL CHEM. FIXED INJECTOR 2.1mm HI-DRAW (100790) Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *