Borosil LabQuest BLFLLH002011040D00 - 5 - 50 (ml) Bottle Top s Research Model Without Recirculation Valve is designed for precise and safe liquid dispensing in laboratory settings. The Research model operates without a recirculation valve, meaning that during initial priming, the dispensed liquid is expelled and cannot be recovered.The Research model is fully autoclavable and adheres to ISO 8655 standards for calibration and accuracy. It's important to note that due to the absence of a recirculation valve, the initial priming liquid is discarded during setup. This model is ideal for laboratories that prioritize straightforward dispensing mechanisms without the need for reagent conservation during priming. Available on EnvMart, these Laboratory Glasswares are crafted from high-quality materials using advanced techniques to ensure precision and durability. Borosil Glasswares are trusted for their accuracy and reliability, making them a preferred choice in laboratories for various scientific applications.