Conair Home Heavy Rain Showerhead with Microban. Heavy Rain Wall-mount Showerhead with Microban Protection, 1 spray setting: full spray offers “heavy rain” sensation, 2.5 gallons per minute (GPM) water flow, Includes Teflon tape, Microban antimicrobial protection fights bacteria, mold and mildew. Package Contents: Home Heavy Rain Showerhead. Microban. Teflon Tape. Product Features: 1 Spray setting: Full spray offers “heavy rain” sensation. 5 Gallons per minute (GPM) water flow. Microban antimicrobial protection.