LDPE wash bottles with wide neck and safety venting. These durable thermoplastic (low-density polyethylene, LDPE) laboratory wash bottles feature wide necks, a solvent vent, color-coded caps, and multilingual labeling. The unique two-way valve allows vapor to escape when pressure builds up and prevents air from entering the liquid, resulting in no more dangerous dripping and a precise, continuous flow. The color-coded caps are red (acetone), orange (ethanol), yellow (IMS), blue (isopropanol), and green (methanol). These multilingual printed wash bottles have a large neck and a DripLok vapor extraction valve, which prevents solvent from dripping out. They are indelibly printed in four languages (English, French, German, Spanish) and include solvent stickers with a global color code. The solvent labels feature globally harmonized symbols, NFPA diamond, hazard warnings, and safety information. Each bottle is fitted with color-coded, one-piece polypropylene (PP) caps that retain their shape in use, and the cap features a pointed nozzle opening for precise dispensing.