AGM's Blue indicating silica gel is comprised of Cobalt Chloride and changes from blue to pink to indicate that the desiccant needs replacing.
Moisture Control - Page 3 of 4 - AGM Container Controls
Moisture Control Solutions For Sealed Enclosures
Packaged Desiccant - Mositure Control - AGM Container Controls
30 Year Experience in the Industry for Silica Gel Desiccant - Premium Quality(See Our Customers' Reviews). High Quality Blue Indicating Silica
8 Gallon [60 LBS] Premium Blue Indicating Silica Gel Beads(Industry Standard 3-5 mm) - Reusable
R Series Transformer Breathers - AGM Container Controls
Selecting Desiccant Guide - AGM Container Controls
Custom Desiccant, Custom Desiccant Packages
Moisture Control Solutions For Sealed Enclosures
Packaged Desiccant - Desiccant Packs
Blue Indicating Silica Gel Desiccant Bulk - Delta Adsorbents
Silica Gel Size: 3-5 mm; You can place the silica gels inside organza bags, muslin bags, or any other breathable bags; Replacement desiccant for air
Dry & Dry [3.7 LBS] Blue Premium Indicating Silica Gel Desiccant (Industry Standard 3-5 mm) - Reusable Desiccant Silica Gel Desiccant Moisture
Packaged Desiccant - Desiccant Packs
Bulk Indicating Silica Gel Granules, 55-lbs Bulk Indicating Silica Gel Desiccant
Desiccant Breathers - AGM Container Controls Desiccant Breathers, What Are They & How Do They Work?
Indicating Silica Gel: Orange vs. Blue - AGM Container Controls