Oase Waterpumps & Accessories Pond liner 632257 - Oase 50650, The Oase pond liner measures 6 m x 4 m, covering an area of 24 m², and is 0.5 mm thick, making it suitable for various garden pond designs. It is ideal for creating pond landscapes and pond digging due to its durability and flexibility. This pre-packed liner, identified by code 50650, is commonly used in garden pond building projects. Oase 50650 AlfaFol Pond Liner 6x4m UV-resistant durable PVC