The Parker Domnick hunter G3 and G4 nitrogen gas generators employ robust, field-proven technology to produce ultra high purity nitrogen for life science, chemical analysis and spectroscopy applications. Flow rates range from 4 L/min to 14 L/min, with purities from >98% to >99.99%. The G3 and G4 generators provide a continuous stream of ultra-high purity nitrogen from a single 'plug & play' unit. Models are available with and without an integral oil-free compressor, are extremely quiet in operation and are fully approved for use by major instrumentation manufacturers. Innovative design and technology facilitate maximum instrument uptime, attractive return on investment and proven analytical performance, eliminating the need for other modes of supply