When you???re hoping to take a sip of cool, clean water as you???re hiking the trails, don???t taste dirt and dust instead. As a protective measure, fit this valve cover right over the mouthpiece. In turn, it keeps out any debris and particles that could end up in your Hydrapak Blaster™ bite valve and your water supply.
Compatible with Osprey???s Hydrapak Blaster™ bite valve