This is a sample kit featuring one each of the following 1/2" geodesic hub connectors:
These hubs are engineered to fit schedule 40 pvc 1/2" pipe. They are made of high-quality pvc or abs plastic. All hubs are predrilled, so they can be attached with nuts and bolts and/or pvc glue welding cement.
It should be noted that pvc pipe is measured by the inside diameter of the pipe. The outside diameter of the 1/2" pvc pipe is closer to .84", and that is the size of the opening in each arm of the hubs. For our metric friends, that's an opening of about 21 mm. There is a 10 degree angle built into the arms to give your dome curvature when you build it.
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