Made by Non-Toxic rubber, soft and durable.
1.Connecting to Direct-mounting Type Canister.
2.Connecting to Separate Type Canister with 0.5 meter length
breathing tube and waist bag.
3.Connecting to 0.5 meter-length a breathing tube with an air
adjuster. When the air pipe is longer than 10 meter, please use
the electric blower unit