General The D'Addario GHP-RS Sponge Pro Replacement Pack includes two fresh sponges for your D'Addario Guitar Humidifier Pro. These sponges are designed to hold up to twelve times their own weight in water and are easy to swap in. Sustainable product not s
General
The D’Addario GHP-RS Sponge Pro Replacement Pack includes two fresh sponges for your D’Addario Guitar Humidifier Pro. These sponges are designed to hold up to twelve times their own weight in water and are easy to swap in.
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