Replacement Screens for Bubble Magic Pollen Tumblers (All Sizes)The Bubble Magic tumbler replacement screens can be used to replace a damaged screen or if you simply prefer a finer or more coarse micron size. Screens are available for all three Bubble Magic dry sift tumblers (the 150, the 500 and the 1500) and in three micron sizes: 145u (regular), 125u (fine) and 185u (coarse). To replace the screen, you need just 4 household tools: pliers, a mat knife, a staple gun, and a flat head screwdriver. Simply follow