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Purification and filtration in [ONE PRESS]. The GRAYL Ultralight makes safe, clean purified drinking water – anywhere in the world!
Purification and filtration in [ONE PRESS]. The GRAYL Ultralight makes safe, clean purified drinking water – anywhere in the world!
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2,378 backers pledged $222,450 to help bring this project to life.

Now Available! ADD-ONS

Posted by GRAYL (Creator)

Finally, we're excited to announce that ADD-ONS are a go! You can now add-on Replacement Purifier Cartridges ($22.25ea) and 32oz Howlers ($42.25ea) to any pledge of $27 or more.

For those of you who have backed Kickstarter projects before, the process should be familiar. For those of you who haven't, the process leaves a little to be desired but it does work. ;)

To ADD-ON to your current pledge, just click "manage" (your pledge); then click "change your pledge", and adjust your "pledge amount" to the amount reflected in the instructions for each add-on below. Thanks so much for your patience and understanding for us Kickstarter newbies.

Have a fantastic and hopefully—outdoorsy weekend! 


PS - add-ons can be combined, ordered in multiple quantities, and prices include shipping and handling.

GRAYL, Jennifer Cheong, and 12 more people like this update.


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    1. Missing avatar

      Jennifer Purger on

      I cannot add on an extra cartridge, I keep trying like you said to another person but I cannot do it, and I need to change my bank card number to a new card no. This site is not that easy to navigate sadly.

    2. Missing avatar

      Ann on

      A couple of months ago, I pledged $77. Selected the GO ANYWHERE PACKAGE, believing i was to receive a Grayl ultralight with 2 filter cartridges and a tee. Now it appears that my pledge was insufficient for that? I'm certain that we'll need a replacement filter over the months that we'll be away, and sincerely hope that I'm mistaken now.
      If not, I need to get a second filter. We'll be in Asia for several months and will need to have a certainty of drinkable water . Plus, I don't want to be carrying the weight and bulk of an expensive "used up" item.

    3. Missing avatar

      Steven T Urban on

      Are ADD-ONs still available? I see no way to "manage" revise or change the amount.

    4. Missing avatar

      Melissa Bowen on

      I believe u charged my card 2 times for 53 dollar donation so that I could recieve ur product. I am on disability and I ordered this in Feb. and it was taken out in March 2016 as well.
      Melissa Bowen 5733181141

    5. GRAYL 2-time creator on

      Hi Hien. Yes that is correct.

    6. hien on

      My previous Pledge amount was 53$, now I would like to add one cartridge, so all I need to do is to revise 53$ into 75.25$?