This product is sized to fit 1" PVC piping. This product is not pre-split, but can easily be cut along the longitudinal side of the insulation with a sharp, non serrated knife or blade. For a pre-slit and self sealing option, you may consider Model # BST13812.
2-1/2 in copper
Yes. This poduct is available through 8" Iron Pipe Size with wall thicknesses from 3/8" up to 2" thick. Please contact the ProDesk at your local Home Depot Store for a full listing of our products.