SteamShell RBA Bridge for Billet / BB / Boro Tank - Silver, Air Flow Pin 0.8 / 1.0 / 1.2 / 1.5 / 1.8mmmm

Stainless steel construction
4.0mm Air Flow Tube Pre-Installed
Open Chimney Tube + Restricted Chimney Tube
510 Aux Building Base
Air Flow Tubes: 2.0mm / 2.5mm / 3.0mm / 3.5mm / 4.0mm
Air Flow Pins: 0.8mm / 1.0mm / 1.2mm / 1.5mm / 1.8mmmm
Suitable for Boro system / Billet / BB / Boro Tank / Vandy Pulse AIO / Cthulhu AIO / Boro Mod