One reusable silicone faucet knockout that will create a 1-1.25 inch hole which should work with most taps. It will also create a 2.5 inch pocket that is 1” beneath the surface for fastening hardware. This will accept most taps, mixers and spouts. Must be used with 1/2" substrate and the standard 2-1/4" forms.

The Tap Knockouts will work on all Z Counterforms except for the Commercial Bar Forms.