Discover genuine Poseidon first stages designed for Cyklon and Xstream regulator systems. Engineered to deliver consistent intermediate pressure, reliable airflow, and outstanding performance, these first stages are trusted by recreational, technical, professional, military, and cold-water divers around the world.
The first stage connects directly to your scuba cylinder and reduces the high cylinder pressure to an intermediate pressure that is safely delivered to the second stage and other connected equipment. It is a critical component of every regulator system, providing reliable air delivery throughout the dive.
These genuine Poseidon first stages are designed for compatibility with Cyklon and Xstream second stages, ensuring optimal performance and dependable operation. Whether you are replacing an existing first stage or building a complete regulator configuration, you can choose a solution designed to meet Poseidon's high performance standards.
Poseidon first stages are engineered for use in recreational, technical, professional, and cold-water diving. Their robust construction and advanced design help deliver reliable airflow in challenging underwater conditions while maintaining the durability expected from Poseidon equipment.
Buying directly from Poseidon ensures you receive authentic components designed to work seamlessly with your Cyklon or Xstream regulator. Browse our range of first stages and find the right solution for your diving setup.
Filter on price