Check the listing for details. Sawyer SP128 Mini Water Single Filtration System Single - Blue. Color: Blue, Condition: New. Listed at 18.00 USD. This Sawyer SP128 Mini Water Single Filtration System in blue is the perfect addition to your camping or hiking gear. Its compact size makes it easy to carry around, while its powerful filtration capabilities ensure you have clean and safe drinking water. With a brand name like Sawyer, you can trust that this water filtration system is top of the line. Designed for use with a range of water bottles and hydration systems, this filtration system is ideal for anyone who loves the outdoors. Its blue color adds a pop of style to your gear, while its durable construction ensures it can withstand even the toughest outdoor conditions. Whether you're a seasoned hiker or a beginner, this Sawyer SP128 Mini Water Single Filtration System is a must-have item for your next adventure.