HUUL HAC18 Filling Banner 202511

HAC18

Thank you for choosing HUUL’s vapor hardware! Below are some best practices designed to help you avoid common challenges in the processes of filling, capping, assembly, and pressurization.

Filling Instruction

Recommended Needle Size16-20ga
Ideal Fill Temperature90°F/32°C (thinner oils) – 135°F/57°C (thicker oils)

Identify the airway and oil tank

Insert a blunt-tip 16 to 20 gauge needle into one of the two filling holes on either side of the central airway. Make sure no oil enters the central airway, as it is located between the filling holes.

Prevent spillage

Do not overfill, and leave some air at the top to prevent the seal from expanding and causing leaks.

Ideal Fill Temperature

Ensure filling at 90°F (32°C) for thinner oils or 135°F (57°C) for thicker oils, and cap within 3 minutes.

Capping Instruction

Capping TimeLess than 3 mins
Capping Force7-20Kg
Capping MethodBy hand or arbor press

Aligned and straight

Ensure the mouthpiece is properly aligned and straight with the vape body.

The right capping force

Check the capping force to ensure it falls within the listed capping force range, and apply even vertical force (do not tilt) when pressing the mouthpiece down until you hear a click. Hammer or mallet installation is prohibited to avoid damaging the equipment.

Must stand for 30 minutes

After capping, it must stand for at least 30 minutes. We recommend waiting at least 12 hours before selling to ensure the atomizer core fully absorbs the liquid evenly, preventing insufficient absorption and potential dry burning that could damage the device.