Beaded Connection - Unibead Liners are used for a J-Hook type installation, as they hook over the top of the pool wall. Unibead Liners are Universal, as they can also be installed as Beaded, or can be used as a replacement of a overlap Liner. Extra heavy Duty, 100% virgin vinyl material Protected against chemicals and UV fading Best cold crack resistance in the industry. High temperature curing, computer controlled process insures that 100% of the material is "Vulcanized" to the highest possible tolerances.Vacuum Sealed, high volume air pumps combined with electronic air filters remove all impurities before bonding. High pressure heat bonding, computer balanced combination of high pressure and exact temperatures insures a void-free permanent bond. The most technically advanced radio frequency vinyl welding reduces the chance of cold spots in the seaming process. Hand folded flat, to reduce wrinkles unliked automated packers that twist and force the liner into the box which can cause permanent creasing. Most Common Type of Liners. UniBead: Unibead Liners are used for a J-Hook type installation, as they hook over the top of the pool wall. This information is intended to answer many questions you may have regarding the type and size liner you may need. Please make sure you measure your swimming pool twice before purchasing. Lastly, none of our liners will fit Intex or any soft-sided swimming pool. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Pools & Spas\Pool Equipment & Parts\Pool Liners". The seller is "savemoreonpoolsupplies" and is located in this country: US. This item can be shipped to United States.