Versico's Molded PVC Sealant Pockets consist of an interlocking, two-piece, injection-molded flexible pocket with a rigid PVC vertical wall and pre-formed deck flanges. Pockets can be adjusted by following the cutting lines molded into the pocket. This product, in conjunction with White One-Part Pourable Sealer, is used to waterproof pipe clusters or other oddly shaped penetrations on VersiFlex Roofing Systems.