Ots Osmo Seal - 4 Pack. Fresh Salt Water Filter - Portable Emergency Product Details ENJOY HYDRATION ANYWHERE - Dependable water filtration from virtually any water source. The Seal is a portable water purifier which turns fresh or salt water into a reliable drinking supply of a grape flavored sports drink. TAKE ON SALTWATER - The Seal is an easy-to-use emergency water pouch that incorporates forward osmosis technology through a high purity 0.0007 micron water filtration membrane. Filter removes 99.9999% of bacteria and 93% of salt from source water. REST AND HYDRATE - To use, simply place the Seal into a water source and wait: 4-6 hours in fresh water or 6-8 hours in salt water. Watch the filter in action as it inflates over time, becoming a ready to use water purification system for survival. FORTIFY YOUR BODY - The Seal makes emergency water delicious. Pouches are packed with Vitamin C, Potassium, and Electrolytes. This drinking water filter has been laboratory tested to filter out even the smallest viruses and bacteria. FEEL SECURE - Trusted by military services globally, the Seal is the ultimate hydration tool for the prepper in you. Add it to your emergency supplies to feel secure at sea or during travel with family. Current Expiration: June 2029 Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.