27’ Atlantic Sierra replacement parts

I have a 27’ round 52” wall Atlantic Sierra pool. It is currently 8 yrs old. We are replacing the liner and need new coping strips and stabilizer bars. It looks like I need a slotted tube to go over the coping strips from what I can tell. Having a difficult time figuring out which length and how many I need or if that’s actually what I need!

If your 27’ pool has a total of 18 top rails, the correct slotted tube/stabilizer is part number 1470101. The round coping strip is part number S1382480. 22 are required for a 27’ pool.