Upgrade mouthpiece o-rings for the Coil King AIO dab pen. These are made from black Viton 75sHa which is highly resistant to solvents. This solvent resistance means they can be left installed on the mouthpiece when it's soaked in alcohol or your chosen cleaning solvent.
Having a 75 ShA hardness rating means they also flex less and so degrade slower from physical forces than the original Nitrile o-rings. We'd still recommend adding a little Top-Slide o-ring lubricant to them to make removal and replacement of the mouthpiece much easier and have the o-rings last from much longer.
- 2 x Coil King Mouthpiece o-ring
- Black Viton 75 ShA