ReFa Shower Head This is the ReFa FINE BUBBLE ONE. Authentic product. Instant purchase is welcome. Important Notes ⚠️ The included adapters are: K: For KVK shower hoses (Hose connection screw size: M22 x P2) G: For Gaster shower hoses (Hose connection screw size: M22 x P1.5) There are two types. For more details, please refer to the instructions at the end of the photos. The outer ring is included. Only the M size is missing. It hasn't been used much. The product itself works without any problems. The condition is almost like new, but please understand that it has been stored at home.