This PA Foam bottle uses newly improved technology to produce high-density foam, which simultaneously improves cleaning results and uses less car wash liquid. Stable operation is guaranteed by the anti-tipping construction, and the knob allows for fan/column spray-free switching for effective coverage while adjusting the foam concentration to suit various cleaning requirements. The cartridge is detachable and washable for easy maintenance, and the thicker bottle is robust and drop-proof. It can effortlessly cover the foam, whether it’s paint, wheels, or glass, increasing the car wash’s effectiveness and professionalism.