These are authentic Crown IV coils, by Uwell, for the top fill Crown 4 tank. Sold in packs of 4, these coils are self cleaning and made of SS904L Stainless steel with optional Mesh in the following configurations:
0.4 Ohm SS904L Stainless Steel (Best 60-70 Watts)
0.2 Ohm SS904L Stainless Steel (Best 70-80 Watts)
0.23 Ohm SS904L Mesh Stainless Steel (Best 60-70 Watts)
What's In the Box?
4 x Uwell Crown IV (Crown 4) Replacement Coils