Dry Sift Screens, Boxes, Bags and Tumblers - Aqua Lab ...
Sifting screens provide the purest possible kief collection, as the multiple screens allow you to continuously sift out any contaminants from your herb. Popular brands like RYOT, Hash Shaker, and Canna Flex all provide a multi-layered, multi-screen wooden box that will do most of the work for you.