K/2, now improved in both shape and technology, shows its popularity as the best-selling HOSP drinking bowl. An ideal relationship between the “HD” valve water output and the bowl size has been researched and developed for calves, young cattle and horses to suit their muzzle size and drinking behaviour. The simple-to-operate pressure flap function and low-soiling surface on the K/2 meets all hygienic requirements, as do all HOSP drinking bowls.