Hydrapak 28Mm Filter Kit - Water Filtration Accessory - Fast Flow - Perfect For We?ve been designing and producing performance hydration systems for over 20 years, and our mission is to help athletes reach their peak performance. By offering better ways to hydrate, HydraPak has pioneered new product categories and become a trusted partner for athletes and brand partners worldwide. Product Features HIGH FLOW RATE: Access potable water anywhere - Filters approximately 1,500 liters of fresh water at a rate of 1 L per minute. SAFE: Effectively removes common waterborne bacteria (99.9999%), and parasitic cysts (99.999%) per EPA Guide Standards and microplastics (99.999%) per NSF 42 greater than or equal to 3.0 microns in size. EASY TO USE: Convert your reservoir or water bottle into a water filter. Comes equipped with cap and backflush adapters. COMPATIBLE: Compatible with all HydraPak 28mm opening bottles and flasks, as well as Plug-N-Play connectors used on reservoirs and water storage containers. "LIGHT COMPACT: At only 47 grams, our filter is one of the lightest filter options available - It is small enough to fit inline in a wide variety of packs and takes up minimal pack space when not in use" Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!