The Resmed Airfit N20 Cushion Seal in size Large is a nasal replacement designed for CPAP therapy. Made of silicone material, this clear seal cushion is specifically for the ResMed Airfit N20 model. It comes in a new, sealed package, providing a snug fit for optimal airflow during sleep. Ideal for individuals looking to maintain their CPAP therapy with a high-quality, reliable nasal seal cushion.