are these supposed to work in protank 3's
$7.73 Kanger Protank E-Cigarette Clearomizer 2.5 Ohm Replaceable Coil Head-Silver(5-PCS)
cause i cant find replacement coils that look like the original protank coil
also the nova vivi dual coils--i can't find replacement coils for this--www.fasttech.com/products/1353401--all the replacement coils are single not double
$7.73 Kanger Protank E-Cigarette Clearomizer 2.5 Ohm Replaceable Coil Head-Silver(5-PCS)
cause i cant find replacement coils that look like the original protank coil
also the nova vivi dual coils--i can't find replacement coils for this--www.fasttech.com/products/1353401--all the replacement coils are single not double