Sight Flow Indicators

We stock two different models that are installed in the process line to provide immediate visual indication of fluid flow and clarity.


  • installable in vertical or horizontal lines
  • brass construction
  • Buna-N seals
  • borosilicate sight glass window
  • nylon ball
  • broad compatibility
  • stock model is ¼” FNPT


  • dual scale: 15-30 LPM & 4-8 USGPM
  • installed in vertical or horizontal lines
  • 304 SS body and internals with no gaskets to leak
  • stock model is ¾” FNPT