GCE Zen-O Column Pair BiPAP and column pairs work with

and column pairs work with the new Inogen Rove 4

and then there's the React Health Platinum 10 (formerly Invacare)

and chargers: 1-800-775-0942

Caire IntenOxy 5 oxygen concentrator

GCE Zen-O Column Pair BiPAP and column pairs work withThe removable sieve columns for the GCE Zen O portable concentrator contain the sieve filters that separate inert gases from room air and concentrate it into medical grade oxygen. Replace them yearly to keep your Zen O producing the correct oxygen concentration. Compatibility Designed specifically for the GCE Zen O portable oxygen concentrator (the larger model). Not interchangeable with the GCE Zen O Lite or other manufacturers' columns if you have