Whirl Pak® Bags, Write-On, 4 oz., Box of 500 Weather Instruments 880 µS/cm conductivity calibration solution

880 µS/cm conductivity calibration solution supplied in a convenient 500 mL bottle

and environmental field applications

waterproof housing makes it suitable for use from boats

Product Code: 111-20947

125" hole diameter

Whirl Pak® Bags, Write-On, 4 oz., Box of 500 Weather Instruments 880 µS/cm conductivity calibration solutionProduct Code: B01062WA 4 oz. Capacity, 3" x 7. 25", 2. 25 mil Wall These bags are the same as the plain Whirl Bak bags, but are designed with a white, write on strip for more accurate identification and added convenience. It is easy to write on this white strip with an ordinary ball point pen, pencil or felt tip marker. The paper like finish virtually eliminates ink smearing. Whirl Pak sampling bags are made of a blended polyethylene containing ethyl