The Vaporesso GTi coils are designed for use with the Itank. These mesh coils feature larger airways and are suitable for various wattage ranges. The 0.4ohm coil operates between 50-60W, with optimal performance at 55W. Other available resistances include 0.5ohm (30-40W, best at 35W), 0.2ohm (60-75W, best at 65W), and 0.15ohm (75-90W, best at 85W). These coils are part of a compatible platform, making them ideal for users seeking reliable performance in their vape devices.