Inogen One G4 Replacement Columns Pair (Sieve Bed) Inogen These sieve beds wear down

These sieve beds wear down after prolonged use

Ergonomic handgrip supports your forearm and relieves pressure from your wrist

5 to 3 in 0

Easy-to-Use Oxygen

Inogen One G4 Replacement Columns Pair (Sieve Bed) Inogen These sieve beds wear downThe Inogen One G4 Column Set are replacement sieve beds for the Inogen G4 mobile concentrator. The G4 Replacement Columns contain sieve beds that convert air with low oxygen levels into medical grade oxygen. It is recommended that the G4 Columns be replaced every 12 to 18 months to maximize the life of the unit. Two columns are included with each order. Simple to follow instructions enable you to easily switch out the column pair without tools and