The Planet Waves Humidipak is the only maintenance free, two-way humidity control system for guitar. It automatically maintains the optimal 45-50% relative humidity level within your instrument case, eliminating the guesswork and potential mess related to refilling a humidifier. Unlike refillable humidifiers, the Humidipak system provides true "two-way" purified humidity control by adding and removing moisture on demand. No more manual adjustments based on seasonal changes, geographic locations, temperature, or other factors. The Humidipak Kit comes with 3 Humidipaks and a soft mesh pouch that will not harm your instrument's finish. Humidipaks last between 2 and 6 months and should always be kept in a sealed environment like a hard-shell case. Once the Humidipaks become firm, discard and replace using the 3 refills that come in the Planet Waves Humidipak Replacement Pack (PW-HPRP-03). This all new, reformulated, patented ldquo; two-way rdquo; humidification system maintains 45-50% relative humidity which eliminates all maintenance and guesswork. this system is recommended by taylor guitars and others for maintaining the stability and playability of your instrument.

GAK is one of the UK's Largest Independent Musical Instrument and Pro-Audio Retailers. Based in Brighton, one of the UK?s musical hotbeds, GAK caters to musicians, DJs, producers, and podcasters all over the world. With over three decades of service and an experienced team of specialists, GAK is well-equipped to help you find your next purchase.

Never heard of us? Here's what you need to know...

  • We have been proudly supporting the music scene for over 30 years, both online and through our famous Brighton store.
  • GAK?s Brighton megastore is open 7 days a week, with stock from hundreds of popular brands, as well as GAK-branded instruments and accessories, made for musicians of all abilities and interests.
  • Our expert team is always on hand to provide you with reliable advice and support.
  • Well-established and knowledgeable mail order team.
  • GAK?s education department supports schools, colleges, universities, and educational institutions across the UK.

Our eBay team can be contacted through the 'Ask a Question' button, which can be found on any of our product listings.

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Our office is open 9:30 am - 5:30 pm, Monday to Friday.

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If you believe your item is faulty, please don't hesitate to get in touch with us.

We aim to ship all orders placed before 1pm on the same working day and tracking information is always provided at the point of dispatch.

  • All UK orders will be shipped with our domestic couriers; DPD, FedEx, DHL (UK Mail) and the Royal Mail. Tracking information is provided for all orders.
  • All orders sent outside of the UK are shipped using eBay's Global Shipping Program. More information on this can be found here.