Hello I am looking for top rail stabilizer pieces for my mighty sun above ground pool that is a 15 x 30 x 48 the part number that was on the package is 1615 which is a 5/8 in rail that is 56 3/8. I was told that I have to have the exact part for my pool and not just any top rail will fit. I did see on here the part that is the same size would that fit my pool?