Aspire Nautilus 2 BVC (Bottom Vertical Coil) Design 1.6OhmAspire Nautilus 2 BVC (Bottom Vertical Coil) Design 1.8OhmAspire Nautilus 2 BVC (Bottom Vertical Coil) Design 0.7Ohm OHMS 0.7Ohm, 1.6Ohm, 1.8Ohm