Does Fill Express require my Trimix cylinder be suitable for nitrox service?
Sometimes. Because our standard Trimix blends are produced using a continuous atmospheric entrainment blending system, hyperoxic gases do not come in contact with your cylinder. Thus, at Fill Express our Trimix fills with standard gases do NOT require that your cylinder and valve be suitable for nitrox service. Many custom Trimix gases would require that your cylinder and valve be suitable for nitrox service.
