LOT of 3  

Endress Hauser Conductivity Standard Solution

 12.64 mS/cm // model # CLY11-D

You gotta be kidding me! Not sure what these are used for. They have been opened and some got used. The two bottles are nearly full, the third is half. The certificate shows these expired, but these should still be of some value to you for this cheap price!!!!

FREE USA SHIP

LOT of 3   Endress Hauser Conductivity Standard Solution  12.64 mS/cm // model # CLY11-D You gotta be kidding me! Not sure what these are used for. They have been opened and some got used. The two bottles are nearly full, the third is half. The certificate shows these expired, but these should still be of some value to you for this cheap price!!!! FREE USA SHIP