With a pressure equalization system which allows air to pass, yet is still completely watertight, cases are easily opened despite pressure or altitude variation. A special membrane, (Gore-ePTFE) continuously allows the free passage of gases and vapors, equalizing the pressure differential between the enclosure and ambient pressure. Water, dust and dirt are repelled by the membrane, protecting contents and ensuring long term kit integrity.
Once we had decided on the Pelican cases, it was on to internal product selection and testing. Throughout the years, several products have been replaced or upgraded as we found better alternatives. Water purification for example was originally left to iodine tablets along with a neutralizer to make it somewhat drinkable. Not only did it taste awful, it was also unsafe for pregnant women and children. In addition, some people with shellfish allergies are also allergic to iodine. The last kit containing iodine was shipped the day before we discovered Aquatabs (back in 2006). Spark-Lite was the logical replacement for the old fashion flint and tinder.
Some items have always remained the same while alternative products have also been made available. Mainstay™ (lemon) food products have always been our mainstay; the choice of Mayday™ (apple cinnamon) products has also been added for variety.
All products contained within all Crashkits have been thoroughly tested to ensure they will work when you need them to work. Crashkits contain only the highest quality tools available.