Description: The PP Plastic 20-400 Smooth skirt fine mist sprayer with clear overcap has a 3.54 inch dip tube (0.12-0.14 cc output). This closure fits containers with a 20-400 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.