An Extra Large 60 Degree V Trapezoidal Flume integrated into fiberglass Packaged Flow Metering Manhole (PFMM).  Here the flume is provided with a removable stainless steel bubbler tube for the user to connect their vinyl bubble line.

Packaged Flow Metering Manholes can be provided with a range of flume styles and sizes to fit the user's exact requirements.  While Parshall and Palmer-Bowlus flumes are commonly integrated, other flumes can also be, including:  Trapezoidal, Montana, HS / H type, and Cutthroat.