Introducing the Pan Liner 10X23 IN With Holes from Star Poly Bag Inc. - the ultimate solution for waterproofing mortar bed shower pan installations. This flexible PVC pan liner is designed to meet ASTM D-4551 and FHA/HUD standards, ensuring durability and reliability in commercial settings. With its 40 mil thick material and abrasion-resistant PVC construction, it provides superior protection against leaks and water damage. The pre-punched holes allow for easy drainage, while the 10x23 inch size offers versatility for various applications. Gluing the liner directly to the drain ensures a positive seal, preventing any potential issues.