F93B-1C Air Volume Control for Deep Wells - 1-1/4 in

This air volume control is designed for residential storage tanks in deep well water systems (over 25 ft deep) to balance air and water volume with deep well pumps. It features a 1/4" gauge tap for easy pressure testing and a 1-1/4" main body thread. Made of premium quality brass internal components and durable plastic housing for excellent corrosion resistance and long life. Easy to install with just a wrench. Wrap the 1-1/4" NPT threads with sealing tape, then screw into the tank opening about 2/3 of the way down. Note: Tank must be at least 9 inches in diameter.