Stop Watch Digital Burn Products This oxygen tank holder is 48750 This oxygen tank holder is easy to install and mounts to the back of your seat * It accepts D and E sized tanks * All you have to do it slide the tank into the holder hand tighten the set screw and you're ready to go * Works with all Golden Tech scooters * Simply select the appropriate scooter type to ensure the correct hardware is recieved * Oxygen Tank Holder for Golden Power Chair: *Fits on the universal mounting bracket on the back of the scooter * Can be used on the Companions Buzzaround Buzzaround Lite and Avenger Durable wall mountable construction with warranty Features: start stop time out split time calendar mode and programmable alarm * Time is calculated by 1 100ths for the first 30 seconds and then measured by 1 second intervals * Time period of 24 hours * Replacement battery GPA76 *