Ziss Air Control Valve (ZV-43) The Ziss Air Control Valve gives accurate and easy airspeed control by just turning a dial, Made by a high-quality plastic material with no leak.
Feature
1. Precise air control by needle type valve
2. Can be cleaned if clogged
3. No leak
4. Can be seen how much the valve opened by transparent material
5. Solid product by Made in Korea