Cart Continue Shopping “Inogen G5 Replacement Filter” has been added to your cart. Remove item Thumbnail image Product Price Quantity Subtotal Respironics SimplyGo Battery $424.97 Respironics SimplyGo Battery quantity $424.97 Respironics SimplyGo MINI Extended Battery $897.85 Respironics SimplyGo MINI Extended Battery quantity $1,795.70 Inogen G5 Replacement Filter $15.73 Inogen G5 Replacement Filter quantity $15.73 Update cart Continue Shopping Cart totals Subtotal $2,236.40 Shipping Calculate shipping Country / region: Select a country / region… United States (US) State / County: City: Postcode / ZIP: Update Tax $0.00 Total $2,236.40 Proceed to checkout