This product contains 2 valves, compatible with all Spectra breast pumps., , All Spectra products that come in contact with breast milk are and always have been made without BPA., What's in the box?, 2 x valve, , Storage Instructions: , The Goods needs to be stored in an indoor location with temperatures between 0 to 40 degrees Celsius and handle them with care, as fragile merchandise. Maximum storage humidity 95%.