Concrete Air Meter Calibrator (5%), Plastic
Item #: CT-2788
Calibrators check the accuracy of any pressure type concrete air meter. Set the specially-designed canister upright at the bottom of the water-filled base. The meter should read 5% air by volume. Two calibrators are used for a 10% air reading.
- 4" dia. x 3-3/4" (102 x 95 mm)