How do i know if my tickets are floor tickets or pit tickets at a concert?
In my opinion, they are Floor Tickets. GA refers to General Admission, and FLR is Floor. So, your tickets are General Admission Floor Tickets, which refers to seats which are occupied on first-come first-served basis. Also, these tickets may be seated, standing or a combination of both. Though you may be quoted section, row, and seat numbers for a General Admission event, however these are for inventory purposes only and do not reflect any actual seating location.
Maybe FLR 2 also is only inventory purpose, but i would suggest you to call the broker now and confirm! And for future purchases, I would like to recommend you a very secure and good website for online ticket booking - Ticket Luck. While buying any ticket(s) from them, remember to enter their exclusive discount code 'CAROL' in the small Discount Code box (in the Billing Information section) on the checkout page and enjoy an instant and a decent discount. The tickets available on this site are of very good seats, and the site has also put up a venue map for better configuration of seats on every page, and for tickets to every event.