![Dot Shell MTL pins - Straight Fire Vaporium](http://straightfirevaporium.com/cdn/shop/products/VapeShell-MTL-Air-Flow-Pins-Kit-6-e1533721064254_1024x1024_2x_6e2a6b69-3e44-4349-87bc-9a780d81dc94_{width}x.jpg?v=1620149564)
-One Air Flow Pin with Inner D=1.0mm
-One Air Flow Pin with Inner D=1.2mm
-One Air Flow Pin with Inner D=1.5mm
-One Air Flow Pin with Inner D=1.2mm
-One Air Flow Pin with Inner D=1.5mm
They reduce Positive Tube’s initial D=4mm down to D=1mm, D=1.2mm and D=1.5mm respectively, offering the ideal air flow for a substantial range of MTL vaping profiles. And this, with optional use of the fine adjustment of AFC Ring
An o-ring around their body allows easy installation plus perfect fitting inside the Pos Tube. The o-ring is black NBR or Sil70 clear, depending on availability.
On top there is an auxiliary laser engraving “1” , “.2” and “.5”, standing for 1.0mm, 1.2mm and 1.5mm respectively, to help you distinguish among the three small diameters.
VapeShell MTL Air Flow Pins are made of 316 Stainless Steel.