The industry's most flexible and field servicable dispensers. Available in an assortment of cinfigurations centered around onem, two and three engine cabinet designs. The cover simply pops off with a good tug. All of the components can be removed and switched around with a quarter turn. The large buttons are easy to operate and can be locked into the on position by engaging a catch. Knight's flow regulator technology is built-in to guarantee accurate dilutions in a wide variety of water conditions.