Kerr® Humidity Control Replacement Kit are now available for your wide mouth mason jars. This kit comes with Integra Boost humidity control packs and the holders to go with them. Protect your product by maintaining the perfect relative humidity level of 62%. 

Kerr® Humidity Control Replacement Kit Includes:

10 Integra 4 gram Boost at 62% Relative Humidity 

3 Kerr® Wide Mouth Pack Holders