Keep your Gregory hydration reservoir in top condition in between hiking seasons with the Gregory Reservoir Cleaning Kit. This convenient tool kit helps you maintain your high performance reservoir in between uses for top performance and clean-tasting hydration when you need it. Kit contains a Reservoir Brush and Hose/Bite valve brush to keep your reservoir, tube, and bite valve clean and taste-free. A smart choice for demanding outdoors adventurers that demand serious hydration.Manufacturer model #: 131481-5583. Everything you need to maintain your high performance Gregory hydration reservoir Packed with tools to help you clean quickly and thoroughly Contains a Reservoir Brush and Hose/Bite valve brush Helps keep reservoir and tube clean and taste-free