Profile: Conterra is an online store that provides medical accessories, modular medical kits, oxygen/airway kits and radio harnessess. Our C.H.S. hydration system consists of a two-liter water bladder, a 36-inch tube, and a patented bite valve. The end of the tube has to be bitten and water can be consumed at any time and anywhere. The filling handle and wide mouth makes reloading or cleaning the hydrator a snap. This is a boon to rescuers and athletes who have found that their performance greatly improves when they stay hydrated. Our Infinity JUMP II medical bag is 12 inches wide and carries much closer to the centerline than other brands of bag, making a back injury less likely.