Description: The DP840WH is a white PP plastic 38-400 ribbed skirt down-lock dispensing pump with 11 inch dip tube (1 Oz / 30 mL output). This closure fits containers with a 38-400 neck finish. The first number is the diameter of the container’s opening (in mm). The second number refers to the thread/style/depth of the closure’s skirt. This pump is made of polypropylene (PP), which means it has a high heat tolerance level and an excellent resistance to fatigue. Dip tubes can be trimmed to fit smaller shorter containers.