The Cora mouthpiece 2 pk 2-Pack Ceramic Coil 1.0ml Tank Magnetic Connection Easy-to-Use Refillable Additional Information Dimensions: 2 x 2 x 2 in. Weight: 0.20 lbs.
*** Comments (1) By Vapejunky on August 9, 2017 So the Cora I have had 2 holes but fills the whole thing there is no separate tubes.. as far as I can tell I've refilled mine at least 10 times.. these aren't disposable cartridges that's the point of them is that they are refillable... I had one cartridge that leaked and I emailed them and they sent me 2 replacements no charge... I'm very happy with this product.. maybe