Product#: TG-2830 Availability: This item normally ships within 1 - 2 business days. Description: Used in spraying reagents in paper chromatography. Unit is connected by 24/40 standard taper joints. Stopper has an air inlet tube and capillary sprayer for a fine mist with a pressure release opposite the sprayer. Rubber bulb sold seperately. See Buret section in catalog, Part # 2399.