Cell Culture Flasks are available in Cell Culture *Treated and Non-treated Suspension Culture versions Cell Culture Treated Flasks have uniform hydrophilic surface ideal for consistent cell attachment Convenient zip-closure bag is a practical alternative to folding and taping open bags Large opening, canted neck design and moderate angles allow easy access to entire flask surface; ideal for cell scrapers Stable base enables filling with flask standing upright Thick, durable walls Flask is printed with lot number and expiration date for easy identification and tracking Molded, interlocking T design for improved stacking on 75, 182, & 300cm² and 250, 600 & 850mL size flasks