we provide GPI standard dropper caps that are suitable for our selection of glass vials and bottles. Polypropylene caps are one of the most cost effective methods of sealing screw-necked vials and bottles to provide secure sealing solutions for different types of liquids and reagents as well as powders and courser materials.
Our dropper size is 13,15,18,20,22,24,28,they can fit 400,410,415 necks.
We can provide Silicon ,NBR,Butyl,TPE etc bulb.
