Platypus Quickdraw Filter System Blue 2L. The dirty reservoir is light and compact and built to withstand the rugged demands of a months-long thru-hike. Its wide-mouth opening and fill-handle keep your hands dry while you quickly and easily fill up so you can keep moving. On the filter the dirty-side I/O (inner/outer) threads attach to the QuickDraw reservoir as well as common narrow-mouth bottles like smartwater and other Platy bottles. On the clean side select between the DrinkCap for drinking and pouring and the ConnectCap that attaches to narrow-mouth bottles. The system is built to be safe effortless and long-lasting. Two cleaning methodsshake-to-clean and backflushingkeep the filter flowing fast throughout your trip while the Integrity Check process allows you to ensure its still safely filtering water. With its incredible ease-of-use packability and fast-flowing performance the QuickDraw Filter System is the best squeeze filter for your backpacking trips. Specifications for Platypus Quickdraw Filter System: Manufacturer: Platypus Color: Blue Capacity: 2 liters Application: Travel Packed Size: 3 x 5 in Pore Size: 0.2 microns Age Group: Adults Fabric/Material: Hollow Fiber Plastic Polyethylene Polyurethane Seasonal/Temperature Use: All Seasons Weight: 5.7 oz Cartridge Life: 1000 Liters Flow Rate: 3 liters per minute Features of Platypus 1L Quickdraw Filter Premium 1L Reservoir: Proprietary tri-layer film dirty reservoir has an easy-fill easy wide mouth opening a fill handle and is super durable and packableplus its guaranteed plastic-taste-free. Combine and Customize: I/O dual threads and the ConnectCap let you dial in your custom leak-free system using the clean and dirty vessels you prefer like smartwater bottles and Platy bottles. Ultralight and Compact: The entire system (filter + reservoir) weighs just 3.3 oz (95 g) and packs smaller than a rolled-up t-shirt. Fast Flowing: Hollow fibers filter up to 3 liters per minute with normal squeeze pressure. Easy Cleaning: Easily shake-to-clean the system or backflush it to keep the water flowing fast throughout your trip. Safe and Effective: Each microfilter is individually tested to ensure it meets all EPA and NSF guidelines for the removal of 99.9999percent of bacteria and 99.9percent of protozoa. Package Contents: Platypus Quickdraw Filter System 2L Dirty Reservoir Connect Cap Drink Cap Short hose With Quick Connector Shutoff Clamp Backflush Washer Platypus 11694: Quickdraw Filter System Blue 2L