Vitera Mask Seal (Medium) Medium (Pack of 1) industrial if you're just using it

if you're just using it for outdoor activities (such as walking dogs)

Survival blanket can also be used as a camping gear tarp

Double layer

torsionally flexible coupling is required

The cable is not same as aux cable

Vitera Mask Seal (Medium) Medium (Pack of 1) industrial if you're just using itVitera Mask Seal (Medium) Fisher & Paykel's RollFit XT Full Face Seal is designed for use with all F&P Vitera CPAP Masks. As the name suggests, the RollFit XT Seal rolls back and forth on the nose, auto adjusting during sleep to reduce pressure on hard to fit areas, like the bridge of the nose, while increasing overall seal and comfort. Product Features Vitera Cushion (Medium) Part 400VIT115 This Cushion Will ONLY Work with F&P Vitera Masks