It produces a nice thick layer of foam on the car, helps clean the vehicle faster and reduces the wash time considerably.The tank is big enough(capacity: 34 oz.) so that you can do a full spread on 5 sedan cars with one fill.Very solid, not easy to broke.Light color of the soap bottle makes it easy to identify the level of soap remaining. The bottle is very thick and the good sealing of the nozzle makes the foam gun never leaks.If you own a pressure washer and are looking for a suitable foam gun. Maybe here is your best choice With 1/4 inch Quick Disconnect Adapter. Suitable for most of the pressure washer on the market.Adjustable spray nozzle allows you to adjust the pressure size of foam/water as needed. The bottle is very thick and solid, so it won't be broken easily. There is good sealing on the nozzle, no leaking at all. Using Instructions: Fill the fluid bottle with the desired amount of shampoo. Fill the fluid bottle with water (for best results, use warm water, 20% shampoo +80% water is suggested). Shake the fluid bottle to mix the shampoo with water thoroughly. Attach fluid bottle to foam lance unit. Attach the fitting/adapter to pressure washer gun, and you can start playing with it. Pressure range: 100 bar ~ 220 bar (1400psi ~ 3200 psi), both home-use and professional pressure washers work perfectly.Foaming performance: Plentiful, thick and high-dense foam, heavy duty and durable design. Capacity of bottle: 34 oz. Adjustable consumption of snow foam cleaner, variable angle spraying pattern from pencil to 60 fan, resistant to chemicals.colour:Yellow Bottle + Blue HandleMaterial:Plastic + coppersize:27x8cmPackage Contents:1* foam pot