Anjon PolyGuard PVC 5 ft. x 15 ft. - 20-mil Pond Liner and Geo Combo QHW4_N2LSQ59

Foundation for your Koi Pond, Water Garden, or Waterfall. PolyGuard PVC Pond Liners are the most cost effective versatile and adaptable liners available. PolyGuard PVC is certified Fish & Wildlife Safe.(2 TIMES DEPTH)
2 = LINER LENGTHPOND WIDTH
2= LINER WIDTHExample: A 12 long, 7 wide and 3 deep pond is...12
(2 - 3) +2 = 20 Long7