Heated humidification kit for series 50 CPAP, Auto CPAP REMstar and series 50 humidifier REMstar brand Philips Respironics. This kit was created for those who own a 60 series CPAP REMstar, but an old series 50 humidifier no longer compatible. With this product you can make an "upgrade" of the old humidifier and "turn" in the latest model to make it...