The Bio-Meyer was first released in July 2021. Based on the original Erlenmeyer, Evol Empire went all in on this design. Evol Empire cut the Erlenmeyer in three sections and added in a recycler. This is the hardest piece to fabricate but the end result is a true work of art. Very smooth, effortless action that never bottoms out. These stand 8-3/4" inches tall, with a volume of 222 mL, and a flow rate of 5.9.