The PTN-Luft valve has been upgraded to create this improved "Luft 2" valve, which is compatible with most inserts on the market. The innovation lies in a more advanced design based on these new features:
1.
2. New aerospace aluminum
3. Reinforced valve axis
4. Lowered head for better seating of the insert in the rim
5. Wider air holes against clogging by sealing milk
7. Longer aluminium cap for greater protection
8. Cap and valve head with PTN logo
9. Ultra light weight of only 4 g