Universal Bead liners (Also known as UNIBead, EZ Bead, or Duo Bead) are equipped with the beading style which will accommodate a Standard Bead application and/or a U/J Bead application. 52 inch Standard Specifications If your above ground swimming pool liner resembles an upside down letter ‘U’ or ‘J’ then you have a U/J bead type liner application and this Universal Bead will work for you. Standard bead liners (also known as snap bead) are installed using bead retainer coping which hangs directly on the pool wall and receives the liner bead. The liner tucks/snaps into place on the large lip of the coping and is fed all the way around the pool. The coping is then secured into place when the stabilizer tube/tracking is placed on top of it. The Universal Bead Application will work for you with you have this type liner. To purchase this item follow this link: https://canadapoolwarehouse.com/product/cayman-unibead-liner/