Starting at $1,238.00
  • Usually ships in 2-3 weeks. Call for expedite options



  • 0.22 to 132GPM water
  • 0.9 to 350 SCFM Air
  • 250mm Scale
  • ±2% of full scale flow accuracy
  • 0.5% repeatability
  • 316L SS Fittings 200°F max temperature
  • PVC Fittings 115°F max temperature
  • 10:1 to 12.5:1 turndown


The King Instrument 7910 series borosilicate glass metering tube offers 70 flow ranges in 7 tube sizes, with a 250mm scale glass tube and 304 stainless steel case. The dual port connections (both horizontal and vertical on each end) allow for a variety of installation options.

King Instrument 7910 series rotameters have a fully enclosed borosilicate glass metering tube with a 250mm scale. In-line 316L fittings and internals or PVC fittings with Hastelloy C-276 internals make the 7910 series rotameter suitable for a variety of general industrial applications.

Alarm Option – Latching Reed Switch

The switch is reed type and uses a biasing magnet to create a latching feature. The switch is classified as a simple apparatus by UL, FM, etc. and may be suitable for hazardous use when connected to an intrinsic safety barrier. Check your local electrical code for wiring specifications.


This product can be used in the following applications: