Medium pressure diving hose up to 2. pressure gauge, breathing regulator for snorkeling [Diving Regulators]: designed for diving regulators, suitable for various buoyancy vests, BCD and the like. [Connection]: The size of the connection head for the first stage is 3/8"-24, and for the second stage 9/16"-18, which ensures a secure and tight fit. [High Working Pressure]: With a working pressure of 350 PSI, this diving hose adapter withstands underwater conditions, making it ideal for professional divers. [Material and Length]: Made of rubber and metal, this medium pressure hose has a length of 90 cm for durability and flexibility. [Application]: This portable submersible medium pressure hose is widely used for snorkeling, scuba diving, underwater agriculture, etc. Specification: Material: rubber and metal Size Chart: 90 cm/35.43 inch The package includes: 1 medium pressure hose