GH-RS – Reserve sponges (3-pack)

Keep your humidifier in top shape with fresh sponges. The D'Addario GH-RS are original replacement sponges suitable for both GH (guitar/bass) and PW-SIH-01 (ukulele) humidifiers.

Over time, sponges can lose their ability to retain moisture or become dirty from minerals in the water. With this set of 3, you'll have enough sponges to ensure optimal humidity through several winter seasons. A simple and affordable way to ensure your instrument is always protected from dry air.