Anjon 10 ft. x 10 ft. 20 mil PVC Liner for Koi Ponds PVC vinyl pond liners are the most cost effective versatile and adaptable liners available. Ideal for ponds of all sizes with steep or gentle sloping sides, tight corners, contours and shelving. Completely safe for fish, plants and wildlife. Attaches easily to waterfall boxes, weirs and skimmers. Remains flexible and pliable even in extreme hot or cold temperatures Contains plasticizers which will deteriorate in direct sunlight. For best results use ground cover, rocks or gravel to protect PVC liner from direct UV exposure Standard 5-year warranty for defects in manufacture, materials or workmanship. 15 lbs. Ships Ground Package