These stainless steel screens for Dynavap M (3-Pack) are precision engineered screens that allow fine particles to be filtered without restricting the smooth airflow that DynaVap is known for. These stainless steel screens are compatible with both the stainless steel and titanium tips. This pack contains three screens and should be able to offer months of extended use. Just a word of caution: cleaning this product with alcohol and other flammable substances is not advised. Alcohol will not necessarily damage any part of the Vapcap even if you soak the component for a long time. However, it is still not recommended.