Inogen Rove 4 Replacement Columns Tape Measure Removable cover allows for easy

Removable cover allows for easy replacement

Choose from two styles of world-class mattresses for supreme comfort

Alarms Audible and visual alarms for high and low saturation (1% to 100%)

the alarm sounds on this tamper-proof pull-cord alarm by Drive Medical

Low profile base prevents tipping

Inogen Rove 4 Replacement Columns Tape Measure Removable cover allows for easyAbout the Inogen Rove 4 Columns The Inogen Rove 4 Replacement Column Pair ensures your portable oxygen concentrator delivers high purity oxygen by filtering nitrogen from the air. When the columns need replacing, the device's LCD screen will display a "O2 Service Soon" alert. These easy to install sieve beds require no tools and should be replaced every 12 to 18 months for optimal performance. Each set includes two columns and is compatible only with