Premium 3L Laboratory Dewar Flask for Liquid Nitrogen Storage
High-purity aluminum inner vessel with advanced vacuum insulation technology ensures ultra-low evaporation rates, maintaining stable -196°C temperatures for extended periods. Durable stainless steel outer shell with anti-corrosion coating protects against impacts, ideal for harsh lab environments or veterinary fieldwork. Includes precision-engineered goblet for secure semen straw storage, perfect for IVF clinics, animal breeding programs, and cryogenic research. Ergonomic handles and lightweight design (2.1kg empty) enable safe, one-handed pouring—no spills during liquid nitrogen transfers. Wide-neck opening (80mm) accommodates large specimens, while multi-layer super-insulation minimizes frost buildup on exterior surfaces. Certified ISO 9001 & CE compliant, leak-proof construction guarantees 100% sterile storage for biological samples, vaccines, and cell cultures. Global bulk order discounts available—direct factory pricing with guaranteed 48-hour shipping from our bonded warehouses.