Screw size: G1/2; Heat resistant temperature: 122°F (50°C); Material: Main body: Brass chrome plating, core TND61015/ABS resin, O-ring/EPDM. Compatible showerhead: TOTOTO, LIXIL (INAX), SANEI, KAKUDAI, Yuko, Shui manufacturing facility, Mizotani, Suzumiyama, Takigi, GROHE, Hansgrohe, etc. The screw size of the mouth does not fit. Materials: (MYM (screw size W 23 thread 14), KVK (screw size M22 x 2), gaster, balance kettle, shower head integrated hose, other imported shower hose, instant water heater for the kitchen, etc.). Contents: Main unit x 1, O-ring x 1, instruction manual (English language not guaranteed) Country of Origin: Japan. Washing revolution! Nano bubbles with an average grain diameter of approximately 92.7 nm. Approximately 66.6 million nano bubbles per 1 ml. (Based on UFB water measurement based on third-party researching); Can be attached to the connection port of the shower head! Simply remove the shower head from the shower hose and attach it in between them! The nano bubbles are smaller than the pores, reaching deep into the skin and scalp, removing sebum and grime, helping to clean skin and hair. Nano Bubble Generating Kit; Effects of nano bubbles less than 1μm. "Nano Bubble" refers to fine nano-sized bubbles with the size of particles. This product produces fine bubbles that can be expected to produce a variety of effects besides cleaning power. [Ghost] Removes pores with a large amount of bubbles that are invisible. [Heat Retention/Moisturizing] Improves heat retention and moisturizing capabilities to improve dryness and cooling your skin. Water Saving Effect: About 15% compared to the amount of water at high discharge due to our research. (*Our company standard test: comparing the water pressure and water flow time of the water supply is under the same condition, when this product is installed and not installed; (High Discharge: 0.05 MPa dynamic water pressure when not installed); "Nano Bubble" is smaller than the diameter of regular bubbles and micro bubbles. The internal core structure of the main body allows the water flow to circulate and generate nano-sized bubbles from the air bubbles contained in the water. The "Nano Bubble" does not lift up like visible bubbles and will stay in place while doing brown movement. Because the surface of the air bubbles negative charge in water, air bubbles repel each other and attract positively charged debris, it is believed to have a cleaning effect. For use with shower heads; *This product has a thread diameter of G1/2. Cannot be installed on products that do not fit the screw size of the shower head connection. Cannot be attached to items such as MYM (screw size W 23, KVK (screw size M22 x 2), gaster, balance kettle, shower head integrated hose, or other imported shower hose, instant kitchen water heater. Due to the structure that generates nano bubbles, the water passage is narrow, so the water pressure may weaken. Note (Disclaimer) > Please read the product images are for illustrative purposes only. ●Returns will be refused after opening.