Medela Battery Pack for Pump in Style w MaxFlow & Pump In Style Advanced Breast Pumps Sphygmomanometer w Gauge Guard Headgear Length (Including Tabs): 20 Capacity 2L Headgear Length (Including Tabs): 20 A universal solution that can be fully integrated into any humidifier whether the equipment is a new model or of a previous generation ComfortLine is a tool to enhance humidification and manage compliance Enhances therapy comfort by preventing condensation in the breathing tube The Rainout Control System is a universal solution that can be integrated into any flow generator or humidifier and works with all types of masks that use a standard tube The ComfortLine Heated Breathing Tube has copper wires embedded in the tubing wall that maintain the air temperature inside the tube providing uniform heating throughout the entire length of the tube Includes padded case Requires 8 AA Batteries (not included)