0.020 Certified Reference Solution (4pk)

Lifeloc's Plus 4 Certified Reference Solution is ready for immediate use with wet bath simulators. Plus 4 Solution is manufactured in our ISO 17034 accredited laboratory, NIST traceable and comes with a certificate of analysis. Made in the USA. Comes in 500ml bottles. Sold in 4pks.

0.020 Solution has a 24 month shelf life.