Overlap Liners Vs. V-Bead Liners
The difference between these two types of liners has to do with how they are installed. V-Bead pool liners feature the V-Bead that runs along the top edge of the liner. During the installation the V-Bead will fit over the top of the wall. With a V-Bead liner it will fit your pool exactly with no excess liner showing from the outside.
Overlap above ground pool liners are installed by removing the swimming pool's top rail and folding or draping the liner over the walls. Plastic clips are used to secure the liner before the top rail is replaced.