Increasingly rare, this masterful STAX enhancer is an angel in cloud filtration! The unique halo percolator slows air flow just enough to bubble away toxins so thoroughly you won’t believe the size of the inhales going down so smooth. Just slide it on your favorite mouthpiece/base STAX combo to bask in heavenly clouds. Unlike traditional built-in percs, the sturdy and maneuverable 7-inch insert is much easier to maintain with quick cleanings. This is thanks to GRAV’s engineers forward-thinking placement of each connector joint at all the spots that usually make themselves hardest to reach. Crafted from durable borosilicate glass, these Austin, Texas glass geniuses never fail to create enthusiast-approved pieces. This particular water pipe attachment will send you singing with the angels with the not-oft-seen halo perc that you and your crew will love to pass around. And with such solid construction, you’ll never have to worry about inviting butterfinger friends!