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NewAlternative4738 t1_j255zq1 wrote on December 29, 2022 at 7:06 PM

Reply to comment by [deleted] in Help drilling a hole through kitchen countertop & flange of undermount sink for a water filter by [deleted]

The side brackets are certainly the primary support, but the sink would also have been attached to the countertop with an adhesive. I suspect you’ll be fine to drill, though if that sink has a warranty, drilling through it will void it.