Finally cabinets and garden window are in and countertop template is scheduled for tomorrow.

We're going to have the sink mounted under silestone countertop. So far, we've a Grohe faucet, soap pump and air switch for the garbage disposal. We do not have hot water dispenser in the plan but are also not wiping it out completely in future. Now, we are wondering if we should have extra cutout made on the countertop in case we want to add hot water dispenser or water filtering system later on. Are these standard size or do we need to know the exact model. KD said we can have additional cutout made later, is that right? Anyone have done this and how much it cost?

We had another thing next to the faucet before remodeling. I think it's for the dishwasher. What's that called? Will we need one? Wish I thought about these earlier.