CamelBak Chem Bio Reservoir 4.0<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"> Attaches to standard protective masks </span></li><li><span class="a-list-item"> Meets USACHPPM TG230A and TB MED 577 standards for 24-hour resistance to Sarin nerve and Mustard blister agents </span></li><li><span class="a-list-item"> Won’t burst， even after a 10ft drop onto concrete </span></li><li><span class="a-list-item"> HydroLink Modular Attachment System allows flexibility between components such as Big Bite™ Valve， Filter Adapter， or Protective Mask Adaptors </span></li><li><span class="a-list-item"> Quick and easy filling via the extended， external screw cap fillport </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/21M2SCHSxDL.jpg" noproxy>