Have two for sale - only 4 months old. I had a really hard time getting them apart and one of the two screws that hold the top rail in place is a little wonky now on both units. You can still tighten them by hand but the Allen key won’t work to tighten them as I used pliers to loosen them. I tried to show this in the second picture. Or you can go to Lowe’s or Home Depot and get new screws.
$90 for the pair plus shipping
Or $50 each plus shipping.
$90 for the pair plus shipping
Or $50 each plus shipping.