This product  is an alternative gel cushion for the ComfortGel Blue and  ComfortGel Nasal Mask. The material is softer and has a better fit. The snap-on silicone membrane should be used over the gel cushion for increased durability, seal and contour with the Sure Seal technology.

It is available in S, M and L. Know your size before buying as only sizes small and medium  fit onto the same frame.