WTR CTSS would be my recommendation especially if the work was done after hours. The description says Solid surface (along with a separator then Granite). I’ve used that line item for other solid surface countertop materials for multiple programs and I haven’t gotten anything back about it being incorrect. If by chance you do get some crap for it you could use TIL CTTL (-) but if you can use the WTR code, you should have between .85 to $1.00 / square foot increase between the two depending on your price list.
