Enhance your sleeping experience with the HumidAir Standard Tub Humidifier Water Reservoir Chamber 37299, designed specifically for the Resmed 10 and it is New in original box. Crafted from durable plastic and With no assembly required, you can immediately begin enjoying the convenience and comfort this water reservoir chamber provides. Its sleek design ensures a subtle and sophisticated look, while the ample water capacity ensures your space remains comfortably humidified. ResMed chamber standard tub comes just as pictured here in original Box. All my items are shipped the same day that payment is received from a clean, smoke free, home!