Clearboys® are useful for large-volume media and culture preparation, especially when light is required. Ideal for storing or dispensing reagents or distilled water. Practical for use in cold rooms, even at subfreezing temperatures. Graduated to contain in 1-gallon and 5-liter increments. Cap included. Cap size: 83 mm. Leakproof. Autoclavable. NOTE: Before autoclaving, set cap on top of bottle without engaging the threads.