These cleaning spray balls are self-cleaning and self-lubrication designed, used to clean rotating nozzle itself and lubricate bearing while working, ensuring longer service life and fully meet the requirements sanitation. They are mainly used in small and medium size tank cleaning or barrels, tanks, reaction kettle, equipment chamfer of tank container in pharmaceutical, food and beverage and chemical industries. Features: Made of stainless steel, durable and long service life. Small size, convenient installation, both internal and external surface are polished well. The largest cleaning diameter reaches 1 to 6 meters, and the rotary one can rotate 360 to spray. Work pressure is about 1.5 to 2.5 kilograms, and it can achieve an ideal cleaning effect. Water consumption is very low, which greatly lessen the cleaning cost. Specifications: Material: Stainless steel Thread Connection: G1/2 Thread Inner Diameter: Approx 1.86cm Flow: 15L/min(under 2kg pressure) Clean Area Diameter: 1m to 6m Type: Fix, rotary(optional) Size: 6 x 4cm / 2.36 x 1.57(fix) 10.2 x 3.5cm / 4 x 1.37(rotary) Weight: Approx 85g(fix), 217g(rotary) 1kilogram(force)=1bar=0.1Mpa=14.5psi Package Includes: 1 x Spray Ball Note: 1. Please allow 1-5mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.