Planet Waves Two-Way Humidification System Replacement 3-Pack

3-pack of replacement packets for the D'Addario Two-Way Humidification System (formerly Humidipak), the first maintenance free, two-way humidity control system, made by Boveda, that preserves a constant 45%-50% relative humidity level within your instrument's case. This eliminates all maintenance and guesswork. The system is recommended for maintaining the stability and playability of your instrument.

Features:

• 3 replacement packs for the D'Addario Two-Way Humidification System
• Automatic humidity control protects your instrument against warping, cracks and other damage cause by lack of humidification
• No more manual adjustments based on seasonal changes, geographic locations, temperature, or other factors Unlike refillable humidifiers
• Eliminates the guesswork and anxiety of maintaining your instrument's proper humidity level
• Custom made by Boveda fo D'Addario