Grav Labs offers a limited production gold line of water and concentrate pipes. Since there is only so many made monthly, what you see for sale today, may not be available tomorrow. What makes the gold line different from the regular Grav Labs line is the Gold Line is made of thicker glass, and sometimes have a better built than the normal Grav Labs line.
Grav Labs Gold Line can be purchased here, make sure you bookmark it, you may never know when a new Gold Line comes out.
Follow @gravlabs on Instagram to see when other Gold Line products come out.