The CellPro5-Layer Multi-Layer Cell Culture Flask provides 875 cm of total growth surface area enabling high-efficiency cell expansion in a compact space-saving design Engineered for optimal cell attachment and uniform surface treatment these flasks promote consistent cell growth while streamlining workflows for faster more efficient culture processes Manufactured from high-quality polystyrene (GPPS) with a vacuum plasma tissue culture (TC) treatment these flasks ensure optimal cell adhesion and even medium distribution across all layers The leak-proof design prevents cross-contamination allowing for safe and efficient cell culture They are compatible with 10 mL serological pipettes for convenient liquid aspiration replenishment and cell harvesting directly within the flask Each flask is individually lot-numbered for traceability and meets USP Class VI standards Constructed with a high-density polyethylene (HDPE) cap and a polytetrafluoroethylene (PTFE) filter membrane these fla