Keep the fresh water flowing with this Red Rock Outdoor GearA(R) 2.5L Hydration Bladder. Ready to replace your old, nasty reservoir with brand-new unsullied drinking-grade vinyl. 42" hose with triple-safe bite guard. Two top attachment points plus cap hook provide multiple mounting options. 2.5-liter capacity (84 oz.) Leak-free screw-on cap with attachment hook Triple-safe bite guard 42" rubber hose Two attachment points at top of bladder Built-in Microban antimicrobial protection