Half Off Ponds' MDP2 - 20 ft x 20 ft Medium PondBuilder Pond Kit w/ 4,100 GPH Pump, PondBuilder 20 Inch Waterfall, & SkimmerCategory: Elite Pondbuilder WaterfallHalf Off Ponds' 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 45 mil EPDM LifeGuard Pond Liner. Pond Liner is the foundation for any Koi pond, water garden, or waterfall. From residential backyard ponds to commercial water features, EPDM LifeGuard Pond Liner is the quality choice of installers and feature owners. Anjon 45 mil EPDM LifeGuard Pond Liner is Warranted for LIFE when installed with UnderGuard Underlayment™ Nonwoven Geotextile Underlayment! LifeGuard Pond Liner is the BEST pond liner with the BEST Manufacturer's Warranty on the market today!