I tried search but the search feature isn't working today.

I was wondering if there is a difference between the Holux GR-213 and the GM213.

I know there is a size difference but aside from that I dont know anything esle about the differences.

Are the sizes a big difference?
Are the performance the same for both?
Which one is better?
Where is a good place to get it for a decent price?

Thanks everyone! I love this forum.