LDPE wash bottles with wide necks and safety venting. These laboratory wash bottles made from durable thermoplastic (low-density polyethylene - LDPE) feature wide necks, solvent venting, color-coded caps, and multilingual labeling. The unique two-way valve allows vapor to escape when pressure builds up, preventing air from entering the liquid. The result is no more dangerous drips or droplets and a precise, continuous dosing stream. The color coding of the caps is Red (Acetone), Orange (Ethanol), Yellow (IMS), Blue (Isopropanol), and Green (Methanol). Multilingual wide-neck spray bottles with DripLok vapor venting valve that prevents solvent drips. Indelible printing in four languages (English, French, German, Spanish). Solvent labels include globally harmonized symbols, NFPA diamond, risk phrases, and safety information. With color-coded, one-piece polypropylene caps (PP) that maintain their shape during use. The caps feature a precise nozzle tip opening for fine control.