http://www.ziphinge.ca John Whyte of Zip Hinge Canada, talks about the 2x3 and 3x3 downspout or downpipe. If you are installing new gutters and downpipes, go with the 3x3 downpipes. The Zip Hinge will fit on any size downpipe.
The Zip Hinge is a tough reliable downpipe extension hinge made of durable aluminum. The Zip Hinge serves two main purposes:
1- Ensures that the downpipe extension remains attached to the downpipe to protect your home's foundation.
2- Provides convenience for moving and working around the downpipe extension (mowing, landscaping, etc...)
