Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon Crux Replacement Tube by CamelBak Save 0% $14.00 | / Blue / One Size - $14.00 Color Blue Size One Size 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Notify me when back in stock Email address Email me when available The CamelBak Crux replacement tube has larger diameter and offers more water per sip than previous tubes. Pair with the Crux reservoir on/off valve (sold separately) for 20% more water flow per sip.