Downstream Injector High Draw


RS5188 -1.8 mm 2-3GPM

RS6740-2.1mm 3-5GPM 

RS6741-2.3mm 5-8GPM



Downstream Injector High Draw

These Downstream Injector High Draw from General Pump are fixed injectors. They are the most popular injectors for house and building washing. You can also use them for post-treating concrete. These are the injectors I use every day.

Downstream injectors will eventually fail so be sure to order a back up or 2 so you can keep on working. As with anything that bleach is run through, there is no warranty or guarantees on how long an injector will last.  Back ups are very important in this business.

We carry these injectors for most flow rates, from 2GPM to 8GPM. We use these injectors in our Downstream Injector Kit and our Downstream Bypass Injector Kit.

For an even higher draw rate, consider our Check Valve for Downstream Chemical Injectors that can draw up to 20%. Your draw rate can be affected by a number of variables, including pressure, flow rate, hose length, or chemical viscosity. These are the only injectors that are compatible with this check valve.

  • 1.8mm, 2.1mm, or 2.3mm
  • Choose from 2-3GPM, 3-5 GPM, or 5-8GPM
  • Up to 20% Draw
  • 4500 PSI Maximum
  • 190F° F Maximum
  • 3/8″ MPT Inlet/Outlet

Are you starting a pressure washing business? Check out my Online Pressure Washing School that will help you drastically cut your learning curve. You can also get some great pressure washing tips and tricks at my YouTube Channel. As always, if you have any questions I can help you with, please use our CONTACT FORM.

Additional information

Weight 4 oz
Dimensions 4 × 4 × 2 in
Flow Rate

2-3GPM, 3-5GPM, 5-8GPM


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