Sawyer Products Sp115 Fast Fill Adapters For Hydration Packs, One Size Product Details Fill your hydration pack reservoir directly from your screw on/off filter without removing it from your backpack with the Sawyer Fast Fill Adapter (hydration pack and filter sold separately). This handy Sawyer "hack" makes refilling hassle free. Adapters attach directly to the drinking tube on most hydration reservoirs. Designed for use with industry standard 1/4-inch inner diameter tubing, it's compatible with the Sawyer Squeeze Filters and Sawyer MINI Filters. Sawyer Products has offered the best, most technologically advanced solutions for protection against sun, bugs, water, and injuries ? everything from first aid kits developed for wilderness to point-of-use water filters that filter contaminated water to levels cleaner than U. S. bottled water. Adapter set allows you to quickly fill your hydration bladder with clean water without removing it from your pack Compatible with the Sawyer Squeeze, Micro Squeeze and Dual Threaded MINI Attach the Sawyer water filter to the adapters and squeeze water into your reservoir via the drinking tube Designed for use with industry standard 1/4-inch inner diameter drinking tube on most hydration reservoirs (hydration pack and filter sold separately) Great for backpacking treks and long hikes 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.