Foam cannons are devices you place on the end of a power washer that combine water and soap at high pressure to spray over a ...

If you use a self-serve car wash pressure washer, that's a foam cannon. They can not only produce a thicker foam and spray it ...

We tested some of the best-known (and a few lesser-known) foam cannons to see how they stack up. These tools aren't just fun to use—they transform car washing into a more effective experience.