Camelbak Crux Replacement Tube The hydration upgrade Replace your old, worn-out tube from your favorite Camelbak Crux hydration reservoir with this Crux Replacement Tube. This high-flow tube has a larger diameter than previous generation Crux tubes, for a higher volume of water for faster hydration. With up to 20% more water per sip, this tube provides faster, more effective hydration than ever before. This tube can be easily paired with a Crux reservoir on/off valve (sold separately) for quick, reliable hydration. The tube is free of BPA, BPS, and BPF, for a cleaner and safer drink every time. Features Replacement Crux reservoir tube is compatible with Crux on/off valves (sold separately)BPA, BPS, and BPF-free for added peace of mind and a safer sip every time Up to 20% more water per sip with a larger diameter design | Camelbak | Crux Replacement Tube Blue