Laboratory flask 72 series

glasspolypropylenepolyethylene

Product overview
A HWTAi cell culture flask is a square laboratory vessel made of PETG designed for sterile cell expansion and maintenance. Available in nominal volumes 125 ml, 250 ml, 500 ml and 1000 ml, the flask supports adherent and suspension cell work in biomedical and biotechnological workflows.

Design and features
The square-body flasks feature precise graduations, a 33 mm neck for secure cap fit and venting options (vented or filtered caps). PETG construction provides dimensional stability; caps are HDPE (high-strength white nylon). Select flasks include surface treatments to promote cell attachment and internal geometry optimized for handling and storage.

Key product details

• Body material: PETG
• Cap material: HDPE (high-strength white nylon)
• Graduations: clear, precise volume markings on body
• Body shape: square for efficient storage and handling
• Nominal volumes: 125 ml, 250 ml, 500 ml, 1000 ml
• Neck/caliber: 33 mm
• Sterilization: gamma irradiation
• Quality control: strict leak testing
• Bioburden: DNase/RNase free; endotoxin/pyrogen free
• Thermal resistance: suitable for frozen storage down to -135 °C

Table: product variants
720101 | 125 ml square culture medium bottle, sterilized | 58×50 mm | 33 mm | Gamma irradiation | 10/bag, 10 bags/ctn
721101 | 250 ml square culture medium bottle, sterilized | 92×60 mm | 33 mm | Gamma irradiation | 10/bag, 10 bags/ctn
722101 | 500 ml square culture medium bottle, sterilized | 117×78 mm | 33 mm | Gamma irradiation | 5/bag, 5 bags/ctn
723101 | 1000 ml square culture medium bottle, sterilized | 145×90 mm | 33 mm | Gamma irradiation | 4/bag, 5 bags/ctn

Applications and benefits
These HWTAi flasks are intended for use in biomedical research, pharmaceutical development and biotechnology production labs for cell culture, drug screening, and tissue engineering. Sterile surfaces, precise graduations and reliable caps ensure reproducible results and simplified handling in routine laboratory workflows.

Specifications / technical details

• Brand: HWTAi
• Body material: PETG
• Cap material: HDPE (high-strength white nylon cap)
• Surface: sterile, validated DNase/RNase free and endotoxin free
• Graduations: precise graduations on body for accurate volume measurement
• Body shape: square (easier to hold and store)
• Available nominal volumes: 125 ml, 250 ml, 500 ml, 1000 ml
• Dimensions (by nominal volume): 125 ml = 58 × 50 mm; 250 ml = 92 × 60 mm; 500 ml = 117 × 78 mm; 1000 ml = 145 × 90 mm
• Caliber (neck): 33 mm
• Sterilization method: gamma irradiation
• Packing specifications: see variants (e.g., 10/bag, 10 bags/ctn; 5/bag, 5 bags/ctn; 4/bag, 5 bags/ctn)
• Quality control: strict leak test
• Thermal resistance: suitable for frozen storage down to -135 °C