Mazama Designs Replacement Bite Valve Sheaths for Mazama Bite Valves (3 Pack)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Replacement bite valve for Side stream </span></li><li><span class="a-list-item"> Works as replacement bite valve sheath for other popular bite valve systems </span></li><li><span class="a-list-item"> High flow bite valve self seals after every sip for no leak performance </span></li><li><span class="a-list-item"> Made from food grade silicone </span></li><li><span class="a-list-item"> Bite from any direction for streaming flow </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31lk5kkAKQL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41pteBR3wjL.jpg" noproxy>