This mini scuba tank kit is designed for extended underwater exploration. Its 1.9 L aluminum tank provides 30-35 minutes of breathable air, while the precision regulator ensures a smooth and stable airflow. It supports refilling via a compressor or scuba tank (adapter is not included), making it ideal for both recreational diving and emergency situations. Equipped with a portable backpack, the empty tank meets air transport standards for travel. | Vevor | | Mini Scuba Tank, 1.9L Portable Small Diving Tank for Underwater Breathing, Reusable Lung Diving Cylinder | Black | Best Buy