Boveda 49% RH (70 grams) - 4 pack
'-Boveda technology is unlike all other 1-way humidifiers, it's the only true 2-way humidity control that will add or remove moisture as needed to maintain between 45-55% relative humidity in your guitar case.
-Protects your wooden instrument against warping, cracks and other damage caused by lack of humidification or too much humidification.
-Typically lasts between 2-5 months in a seasoned case. Longevity depends on time of year, case quality and ambient RH levels.
-Use with our leak-resistant fabric holders.
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