Foam cannon without a pressure washer?

Short Pressure Washer Gun with Foam Cannon, 5000 PSI Power Washer Foam Gun Kit for Car Wash, 3/8 FNPT Swivel Inlet, M22-14mm & 1/4 Quick Connector

Pressure Washer Trigger Swivel Gun 5000 PSI with Car Wash Foam Cannon Set

Foam Cannon vs Foam Gun

IS A PRESSURE WASHER FOAM CANNON BETTER?

MULTIPLE CONNECTION METHODS: Snow foam cannon has a detachable 1/4 Inch Quick Connector. If your fitting of the pressure washer gun is a 1/4'' quick

Tool Daily Foam Cannon, Adjustable Foam Blaster, Snow Foam Lance with M22 and 1/4 Inch Quick Connect, Additional Orifice Nozzle 1.1mm, 1.5 Liter

The BOSS Foam Cannon – LZMFG

Foam Gun Vs. Foam Cannon: Which Is Right For You?

5 Tips On How To Choose and Operate your Foam Cannon - Chemical Guys Car Care

Tool Daily Foam Cannon, Adjustable Foam Blaster, Snow Foam Lance with M22 and 1/4 Inch Quick Connect, Additional Orifice Nozzle 1.1mm, 1.5 Liter : Patio, Lawn & Garden

As Seen On TV Carwash Cannon Soap Foam Blaster!! VS MTM Foam Cannon!

Foam Cannon Without a Pressure Washer? Any Good??