Black counter drop screw cap for 10 ml DIN-18 neck bottle, 20 pcs

Polyethylene counter drop screw cap with seal, silicone teat and glass tube. For converting to counter-drops our glass bottles FRGA, FRGN, FRGB and FRGG

reference: CG18-B10-020, screw: DIN-18, type: for 10 ml bottle&comma: black, pcs/pack: 20