Capacity: 4ml, Diameter: 24mm single coil design for easy building, Thread: 510, Easy top filling, stainless steel and glass, Air holes under the coil.
Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
5pcs/Lot Wotofo Flow 24mm Tank Extended Tube Fat Boy Convex Replacement Bulb | $6.13 | – |
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Price history and price alert
Check out price history chart (for all/most countries) for Wotofo SERPENT SMM RTA Black. The lowest price was: $16.99.
Price records source(s): Gearbest
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).