Published : 09/09/2021What is the shelf life of the calibration solutions? JP Jun 2, 11:56 AM - Categories : Questions about RedOX probes Jun 02, 2021, 11:54 am Hello ph-redox-pool.com Jun 02, 2021, 11:55 am Hello Jun 02, 2021, 11:56 am What is the shelf life of the calibration solutions? ph-redox-pool.com Jun 02, 2021, 11:57 am 2 years, but if you do not pollute them and you close the cap then 4 years without worries Jun 02, 2021, 11:58 am OK, thanks ph-redox-pool.com Jun 02, 2021, 11:58 am You're welcome, have a nice day