Bio-Simplex® Carboys maximize storage containment and highlight many ease of use features. Their rectangular shapes save valuable bench space over that of round containers and are available in 2.5 L, 5 L, 10 L, 20 L, 40 L and 75 L sizes. Carboys are manufactured from polyproplyene copolymer (PPCO), high density polyethylene (HDPE), and polyethylene terephthalate glycol (PETG) materials suitable for a variety bioprocess activities. The carboy's body includes design features that allow the user to easily fill, lift, hold and pour contents while the versatile EZ Top® Container Closure provides an interchangeable and leak-proof top connection. Single-use EZ Top assemblies deliver ease of aseptic fluid transfer in a closed system environment and are available in a choice of two resins: C-Flex® thermoplastic elastomer and Sani-Tech® platinum-cured silicone. Bio-Simplex Carboys are available with or without a spigot for bottom dispensing. Featured easy-to-read graduation marks provide ± 5% TC/TD accuracy clearly identify content volume. Carboys meet the requirements of the USP, Biological Tests for Plastics, Class VI. Bio-Simplex Ultra Carboys combine the unique design features of our PPCO product line and are in compliance with USP 788, particulate matter in injections, limits for critical bioprocess applications.