New Upgraded Design: The bottle body increases the ergonomic groove, easy to hold and not easy to slip. Reinforced wide neck to prevent the neck from cracking and easy to fill with soapy water. The bottom of the fluid conduit added a filter head to avoid foam clogging unable to spray foam.Easy to Use: Fill the bottle with warm water and soap to obtain a thick lather, and connect the 1/4" quick connect plug to the pressure washer gun or wand. Turn the top knob right (-) and the top knob left (+) to adjust to the desired foam level and adjust the nozzle to control the spray area and horizontal/vertical.Transparent Design: The car wash sprayer is transparent, so you can see the remaining amount of the cleaner. Clear scale lines facilitate the observation of capacity.Upgraded Wide Mouth Design：Snow Foam gun Reinforced wide mouth to prevent the mouth from cracking and easy to fill with soapy water.The bottle body increases the ergonomic groove, easy to hold and not easy to slip.Professional Foam Gun： Made with heavy duty brass material and high-performance plastics , gives longer service time than other similar products; Offer excellent durability for residential and commercial usage.