The Wisp CPAP Mask Frame by Philips Respironics is a superior replacement piece which will create a stable fit and secure seal for patients on a regular basis. This Respironics Wisp fabric frame is lightweight, easy to apply and has a pleasing gray color. This frame is reversible and has two different fabrics which will allow you to select the most appropriate cushion for you. Features Interchangeable with silicone frame for the Wisp mask Designed to work with all Wisp CPAP and BiPAP masks Reversible frame with two different fabrics Does not include nasal cushion Lightweight & comfortable Includes frame only Pleasant gray color