- Vapor4Life (any of their cartos)
- CigEasy (any of their cartos)
- VaporNine (they brand the Kr808D-1 as the "Nebula" - so any cartos that work with that, including Turbos)
- LeCig (D1)
And any generic (unbranded) cartos labeled as being for the Kr8, Kr808, 808D-1, and 808, including...
- Good Prophets
- ElectroNicStix
- AltSmoke
- Vapor Flow
And lots and lots and lots more...
These are the ones I have had the best luck with, as far as longevity and and performance, best to last (just my experience)
- CigEasy Gold Label
- VaporNine Turbo
- V4L Cool Carts
- Generics
- V4L standard
- V4L Premiums (which are now called WOW cartos, I think - these are low resistance, so they run hotter, thus why they don't last as long for me.)
Haven't tried LeCig's D1's yet.