Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon Bite Valve Cover by Gregory Save Liquid error (product-badge line 32): Computation results in '-Infinity'% $5.95 Optic Blue / One Size - $5.95 Color Optic Blue Size One Size Availability: translation missing: en.general.icons.icon_check_circle icon Only 8 left! 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Looking for Local Pick-up? Choose a store below. Product Locator by Locally Notify me when back in stock Email address Email me when available Bite valve cover with integrated tether. Compatible with Gregory's DryLock Magnetic Bite Valve. Thread tether over hose before bite valve to secure cover. Fits up to a 0.5" / 13mm outer diameter hose.