This product is no longer available. Some accessories, replacement parts, or services may still be available.

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Services Available
Repair Yes
Calibration Yes
Free Support Yes


The 21826 provides an orifice with an inner diameter of 0.089 inches. It is one of three orifice options available for the 21822-L Intake Tubing. The 21822 is a common accessory for the CPEC100 Closed-Path Eddy-Covariance System.