• If you like the way soap is applied at self serve car washes, this accessory is for you
• The ST-64 injector is designed for high pressure soap applications
• Introduces detergents into the water system upstream from the pump
• An adjustment screw sets the orifice to the flow of your pump
• The "on-off" plunger is then used to control the injection
• Easily connects to inlet of pump at garden hose connection
• Inlet: 3/4" FGH (female garden hose)
• Outlet: 3/8" MGH
• Chemical strainer and 4’ PVC tubing included
• Size: 4.0 to 7.0 GPM flow rate
• Choose size based on flow rate of your pressure washer
• 140 PSI maximum inlet pressure
• 160° F maximum temperature
• Optional ST-61 chemical metering valve adjusts from off to full flow