Patriot complete pond kits are the preferred choice of landscape contractors and discerning homeowners. Our kits include components from leading manufacturers, selected to work together to create a beautiful, low-maintenance backyard oasis. You get all the installation parts, supplies and instructions you need to build the water feature you want. This kit includes Anjon LifeGuard 45 mil EPDM pond liner. Pond Liner is the foundation for any Koi pond, water garden or waterfall. From residential backyard ponds to commercial water features, EPDM pond liner is the quality choice of installers and feature owners. Anjon LifeGuard 45 mil EPDM Pond Liner is Warranted for LifeTM when installed with UnderGuard Geotextile Underlayment! This is the best pond liner warranty on the market.