One G4 Replacement Columns - Oxygen Concentrator Accessories - Tool-Free Operation - 2 Metal Columns - Regular Maintenance Parts

【Genuine Replacement Parts】: Specifically designed as replacement columns for the One G4 oxygen concentrator; ensures compatibility and optimal performance; maintains the integrity of your oxygen delivery system 【Tool-Free Installation】: The column replacement process is designed for simplicity; requires no tools for easy at-home servicing; allows for quick and convenient maintenance; accessible for all users with minimal technical expertise 【Regular Maintenance Reminder】: The One G4 device provides user alerts when column replacement is necessary; eliminates guesswork and ensures timely maintenance; helps maintain consistent oxygen output; recommended replacement frequency is approximately every 12 months 【Durable Metal Construction】: Constructed from robust metal for long-lasting reliability; designed to withstand regular use and maintain structural integrity; contributes to the overall durability of your One G4 system; dimensions are 2.21"W x 2.37"L x 5.50"H 【Optimized Performance】: Replacing the columns regularly helps maintain optimal oxygen concentrator performance; ensures consistent oxygen delivery; supports the longevity and efficiency of your One G4 device; weight of the pair is 0.63 lbs