Standard Sphere: Designed for 1/2" PVC Mega Sphere: Designed for 1" or 1.5" PVC
We carry Geodesic Sphere Kits for 1/2" PVC (Standard) and 1" or 1.5" PVC (Mega). We carry hub only Sphere Kits and full Geodesic Dome Sphere Kits that include the pre-cut PVC for you.