This is the improvement over the original MTM foam cannon. I think it's worth the upgrade. The bottle and adjustability on the fly are much improved. I have both and always grab this one.
This specific kit comes with a 1.1mm orifice installed (For cheaper pressure washers like Karcher, GreenWorks, Ryobi, Sunjoe & AR). The foam cannon comes with the standard 1.25mm in the box. You want to use the standard 1.25mm with a Kranzle and most gas pressure washers. The smaller 1.1mm should be used with the lower flowing/less expensive electric pressure washer like the SunJoe, AR, Greenworks, Ryobi, etc. I would strongly suggest you don't attempt to use the 1.1mm orifice on any Kranzle. 1.25mm is already working the pump pretty hard on those much higher flowing machines.
I open the box on every foam cannon that comes from me and swap the crappy zinc plug with a stainless one.
Here is how I use mine:
Add 4-5 oz. Adam's Car Shampoo.
Fill with water, by holding submerged in rinse bucket.
Remove 20" Mosmatic Wand from quick disconnect on Mosmatic HP Spray Gun.
Attach 1/4" Plug/Foam Cannon to Mosmatic HP Spray Gun quick disconnect.
Foam the Car.
Warranty Information: MTM offers a 60 day warranty for any possible defects with their products. Info about their warranty can be found Here.