The Kennison Nozzle is utilized to measure the flow of fluids in a partially filled pipe. The nozzle shape allows measurement of low flow rates and over a wide flow rate range. As well it allows measurement of fluid streams with solids and debris such as storm drains and raw sewage. The Kennison nozzle is ideal for measurement of flows into open manholes or open flows into tanks. Nozzles are available in standard sizes 6" to 24" and special sizes up to 48" in inlet diameter.