Free ZeroWater Filter Cartridges With 3 Friend Sign-Ups

Free ZeroWater Filter Cartridges With 3 Friend Referrals. Zero Filters are compatible with the ZeroWater line of pitchers and other products, see Amazon here.

1. Click here, sign up. 
2. After you sign up you will get a referral link to share with friends
3. Get 3 or more friends to sign up. Signing up means they must click the link, enter their info and submit. JUST CLICKING YOUR LINK DOES NOT COUNT FOR ANYTHING. they must click and sign up. It must also be a new sign up, they cannot sign up again and again, it won't count.
4. According to what the page says, for every 3 friends that sign up you will get a filter. The language is slightly unclear to me. I am not positive how many you can get or if it is unlimited, but according to what I understand for every 3 friends you will get 1 filter
5. Contest ends on 2/28. They will e-mail you after 2/28 to get your mailing info