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Calibration Columns & Calibration Cylinders

Koflo pump calibration columns / calibration cylinders provide a simple method for determining pump flowrate using industry-standard graduations of milliliters/minute and gallons/hour. Top-aligned graduated scales allow the operator to survey both ml/min. and GPH in a single test. High-contrast blue lettering enhances readability in all light conditions, and all scales have a protective Mylar lamination to protect against chemical attack. All sizes feature rugged construction using industrial grade machined PVC fittings.

Complete line of Koflo fixed-cap pump calibration columns

All column sizes are available and in-stock:

Request Pricing

Accurate, dual-scale metered graduations

Each Koflo® calibration column comes with two precise graduated scales behind a protective layer of Mylar lamination to protect against chemical erosion.

See Technical Specifications for more information on available scales.

Watch the Operation Animation

Close up of 1000ML calibration column scales

Technical Specifications

Capacity Model Number Tube O.D. Column Height FNPT End
Connections
Weight
mL/min GPH Fixed Cap Top Slip Cap
100 1.5 100 ML 100 ML-SC 1.315" 12-1/2" 1/2" 7 oz
250 4 250 ML 250 ML-SC 1.660" 16-1/4" 1/2" 12 oz
500 8 500 ML 500 ML-SC 2.375" 16" 3/4" 1.4 lb
1,000 16 1000 ML 1000 ML-SC 2.375" 25" 3/4" 1.9 lb
2,000 32 2000 ML 2000 ML-SC 3.500" 24" 1" 4 lb
4,000 64 4000 ML 4000 ML-SC 4.000" 34" 1" 6.5 lb
10,000 160 10000 ML 10000 ML-SC 6.625" 27" 2" 7.5 lb
20,000 320 20000 ML 20000 ML-SC 6.625" 46" 2" 10 lb