Q: Can I refill nang bottles myself? A: It is recommended to purchase pre-filled nang bottles from reputable suppliers. Refilling nang bottles yourself can be dangerous and may compromise protection. Needs regulator and hose fittings to connect with a whipper dispenser. Every tank includes a screw in plastic pressure release https://dominickmwenv.wikipresses.com/5523281/the_ultimate_guide_to_nang_melbourne