420EDC introduces our scientific glass sourced from Schott Glass and manufactured to 420EDC specs in the US. Our Stems are available in two variations/prices and three lengths (small ≈ 68mm)(medium ≈100mm)(medium+ 45˚ ≈110mm):

Slim Stem is screen-less but has a narrowed indent to house our TopHat Bullet Technology at the far end beyond the 19/22mm joint.

Screened Stem has a borosilicate glass screen blown directly above the joint in the stem to house our TopHat Bullet Subchamber Technology.  The screen adds increased air resistance compared to our Slim Stem.

TopHat Bullet Technology is a drop-in/drop-out reloading solution for which our 420EDC Stems are designed to house.  Designed for optimal on-the-go use of unground or hand torn material.

Colored Glass and Clear Glass (Non 420EDC) sold with colored glass is not from Schott.  Not all screens will work with all glass.  If we see an issue with glass you are ordering and compatibility with the screens you are ordering, we'll notify you. 

Arizer Glass available in clear glass along with Two-Tone that incorporates Black and Clear Glass variants designed specifically for the Arizer Portable line-up of vaporizers.

RastaBuddhaTao Compatibility:  Milaana 2.0 and Splinter's produced from July 2018 use 19/19 glassware.  None of the glass we sell is compatible with these newer RBT specifications.