Medical items from EDC Gears and Stuff The SAM chest seal valve 2.0 ✅Original item that is medical grade, proven to work in the battle field and in EMS by SAM so you can be sure that this is medical grade, sterile from the factory, will work when you need it as it should for these kind of items. MADE in USA SECURELY SEALED – IMMUNE TO THE ELEMENTS SAM® Chest Seal is engineered to seal and reseal open chest wounds under the majority of circumstances. After simple and quick application, SAM® Chest Seal sticks relentlessly – in extreme heat or cold, and in the presence of all elements. Meets CoTCCC-preferred features. FEATURED TECH TRUFLOW™ VALVE SAM® Chest Seal’s rigid, raised-dome valve ensures one-way airflow from the chest cavity, no matter the pressure applied. Large side vents minimize internal obstruction from blood clots or soft tissue. Whether in transport or in the presence of heavy body armor, the TRUFLOW™ Valve will continue to vent. SUPERIOR HYDROGEL ADHESIVE