The Standard Bead is designed to slip into a standard liner bead receiver's track, which rests on the top of your pool wall. Bead receiver is required to use a Standard Beaded liner.This replacement pool liner has been built to the exact specifications to fit your Kayak® rectangular pool.Size: 12' x 20'Wall Height: 4' Flat BottomShape: RectangularConnection: Standard BeadGauge: 20Material: 100% Virgin VinylAbout Our Liners:100% virgin vinyl constructionOur liners have been vulcanized, high pressure heat bonded and vacuum sealedMaterial has been RF vinyl welded with lap welded seamsDurable liners free of impuritiesLiner Limited Warranty:The liner limited warranty is based on gauge. Parts manufactured for, or purchased from SaveMoreOnPoolsupplies are warranted by SaveMoreOnPoolsupplies or the manufacturer; depending on the product.20 Gauge = 20 Years About SmartLineWe provide high quality material, resisting abrasion, chemicals, and fading from the sun. Utilizing 100% virgin vinyl with a UV resistant top coat, we weld and cut our liners to provide a flawless fit. Our various patterns provide the perfect aesthetic for your summer retreat.