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Features of the Waters 4-Channel In-line Degasser AF include:

- Lower drift, pressure fluctuation, and baseline noise
- Supports up to four independent fluid channels in separate vacuum chambers
- Zero hysteresis/constant-run vacuum pump with stepper motor
- Cycles between high-speed and low-speed operation to enable rapid vacuum and eluent equilibration 
- Flow Range: 200 µL/min to 5 mL/min
- Pressure Drop Across One Channel: <0.08 psi (0.55 kPa) at 1 mL/min. Milli-Q water, STP
- Eluent Connections: 1/4-28 reversed ferrule fittings
- Maximum Pressure: 10 psi