Hookah valves are one of the most essential hookah parts - they help to regulate the airflow and ensure that hookah smokers get a smooth, consistent smoke. Hookah valves are usually made of brass or stainless steel, and they can be either screw-on or slip-on. While hookah valves may seem like a small hookah part, they can actually make a big difference in the smoking experience. In addition, by allowing hookah smokers to adjust the amount of air that goes through the hookah hose, hookah valves can also help to prevent tangling and blockages. As a result, hookah valves play an essential role in providing an enjoyable hookah smoking experience.