6m x 6m EPDM Rubber Pond Liner, 900 GSMThis premium 900 gsm EPDM pond liner in the generous 6 m 6 m ( 19 ft 8 in 19 ft 8 in) size combines industry leading durability with exceptional flexibility, making it ideal for substantial garden ponds, koi pools and wildlife habitats. The thick synthetic rubber sheet effortlessly conforms to complex layoutssweeping curves, steep banks or tiered planting ledgeswithout creasing, and its robust construction delivers decades of leak free performance