20mm top bucket 
80mm tall 
25mm one-piece bottom dish 
3mm thick wall 
Beveled edge 
Maria joint 
Premium ground joint with engraved logo 
Fully worked seal 
3 precision cut slits
The slits are cut at an angle, therefore air enters the column at an angle, causing any pearls or pillars to spin at light speed (see second photo)
*30mm pillar will fit this cut the best!