The OMEGA® Water Beast™ Reservoir is the ultimate delivery system for an operator's water supply. The reservoir’s proven durability, OMEGA® wide mouth opening, rugged materials ensures the reliable delivery of water during extreme operational situations. Also includes Big Bite™ Valve and HydroGuard™ Technology. Features the patented Big Bite Valve Wide OMEGA® fillport opening makes it easy to clean and fill Includes HydroGuard Technology, which inhibits the growth of bacteria on reservoir and tube surfaces Taste-free multi-layered Pure Flow drink tube