Foam Gun: The 900ml foam gun can spray water, soapy water, detergent, etc. It connects to the garden hose. 【2-in-1 Function】: Sprays dense foam or water, the foam concentration can be adjusted, and the connector is quick to install. 【Multi-Level Adjustment】: Turn the knob to adjust the foam concentration (6 levels in total). To produce foam, you need to fill the container with car detergent or other solvents. 【Pressure Resistance】: The sprayer is made of high-quality ABS material, resistant to chemical corrosion and abrasion. It can withstand the water pressure of garden hoses. Multi-purpose: Car, house, and boat washing, garden watering, and spraying pesticides or disinfectants. The foam gun is easy to disassemble and can be used at any time.