Calibration Columns

4000 ML cylinder, 200 ML major graduations, 25 ML minor graduations. 2" NPT connection. For pumps up to 120 gph. Neptune Calibration Columns provide a fast, easy and economical means of checking the flow rate of your chemical metering pump. The most...

1000 ML cylinder, 10 ML major graduations, 5 ML minor graduations. 3/4" NPT connection. For pumps up to 30 gph. Neptune Calibration Columns provide a fast, easy and economical means of checking the flow rate of your chemical metering pump. The most...

500 ML cylinder, 20 ML graduations, 3/4" NPT connection. For pumps up to 16 gph. Neptune Calibration Columns provide a fast, easy and economical means of checking the flow rate of your chemical metering pump. The most accurate test of metering pump flow...

250 ML cylinder, 10 ML graduations, 1/2" NPT connection. For pumps up to 7 gph. Neptune Calibration Columns provide a fast, easy and economical means of checking the flow rate of your chemical metering pump. The most accurate test of metering pump flow...

100 ML cylinder, 1 ML graduations. 1/2" NPT connection. For pumps up to 3 gph. Neptune Calibration Columns provide a fast, easy and economical means of checking the flow rate of your chemical metering pump. The most accurate test of metering pump flow...

4000 ML cylinder, 200 ML major graduations, 25 ML minor graduations. 2" NPT connection. For pumps up to 120 gph. Neptune Calibration Columns provide a fast, easy and economical means of checking the flow rate of your chemical metering pump. The most...

1000 ML cylinder, 10 ML major graduations, 5 ML minor graduations, 3/4" NPT connection for pumps up to 30 gph. Neptune Calibration Columns provide a fast, easy and economical means of checking the flow rate of your chemical metering pump. The most...

500 ML cylinder, 20 ML graduations, 3/4" NPT connection for pumps up to 16 gph. Neptune Calibration Columns provide a fast, easy and economical means of checking the flow rate of your chemical metering pump. The most accurate test of metering pump flow...

250 ML cylinder, 10 ML graduations, 1/2" NPT connection for pumps up to 7 gph. Neptune Calibration Columns provide a fast, easy and economical means of checking the flow rate of your chemical metering pump. The most accurate test of metering pump flow...

100 ML cylinder, 1 ML graduations, 1/2" NPT connection for pumps up to 3 gph. Neptune Calibration Columns provide a fast, easy and economical means of checking the flow rate of your chemical metering pump. The most accurate test of metering pump flow...