... duration Durable in several condition Thickness4.5inch, dual wall 5.2inch, 7inch.Gutter/Downpipe length2M/4M/6M or any ... length you wantDiameter of k-style gutter 5.2inch 4.5inch130*103mm down spout 85*65mm.115 ... Normal Environment temperature-40°—75°Dual wall the gutter:5.2 inch onlyPlace of originHangzhou,ChinaFeatureLow cost and long ... near future.Welcome to hear from you. Plastic squared pipe