A replacement bite valve for your Quick Stow flask. The one-piece silicone design delivers rapid hydration and self-seals to eliminate annoying leaks and drips. Features Bite valve self-seals to eliminate annoying drips. Patented one-piece silicone design. Specification Closure: Leakproof. BPA/BPS/BPF Free: Yes.
Best Price: £2.99 from Merlin Cycles