Foam Gun - Quart or Half Gallon size?

[Gregor]

It sounds like the quart size holds enough to wash approximately one car. What are the advantages of going with the half gallon size?

[abrcrombe]

Not having to refill the canister.

I have the quart and it works just fine. Unless you have an injury or are kind of lazy, get the quart and save 10 bucks or however much the difference is.

[Surfer]

Friend has the quart which I've used as well, seems fine for me, more then enough to do our suv's so....

[supercharged]

I have a quart size, and it works fine for me.