Noob question...

I got KVS mostly to look for award flights. To be honest I don't understand much about fare buckets.

I went online to book a flight YYZ-RDU outbound Nov. 2, return Nov. 4. The best option was on DL and it said "Economy (T)" for the flights in both directions.

I went into KVS and searched for those flights and saw T7 for both of the segments on the outbound and T8 on both segments for the return.

Does this mean that at least at the moment, there are 7 available seats on the outbound and 8 on the return in this fare bucket, and that if the fares don't change I am very likely to be able to book this fare tomorrow or the next day? Understanding of course that there are fare rules (two days from now would be the 21-day window) and that fares could change.

How would I find the fare rules on DL.dumb?