A: Without seeing pictures, I am not for sure what it could be. Try using a Mr. Clean magic eraser on the areas. If the rings still exist, then please email me a picture and your contact information and I will contact you. My email is firstname.lastname@example.org
A: The grids that fit this sink are model numbers GR-6003 and GR-6004.
A: This sink model will work with a concrete countertop.
A: For this QA-760 you need a special farmhouse sink base cabinet but if you order the QAR-760, it is the same sink but with a shorter 6-1/2" apron. It will fit in a regular 36" sink base cabinet.
|Name||Farmhouse Apron Front Quartz Composite 34 in. Double Offset Bowl Kitchen Sink in White||Retrofit Farmhouse/Apron-Front Quartz Composite 34 in. Double Offset Bowl Kitchen Sink in Bisque||Retrofit Farmhouse Apron Front Quartz Composite 34 in. Double Bowl Kitchen Sink in White||QA-760 Quartz/Granite 34 in. Double Bowl 60/40 Farmhouse/Apron Front Kitchen Sink in White with Grid and Strainer|
|Actual Left to Right Length (In.)||34||34||34||34|
|Number of Bowls||Double Bowl||Double Bowl||Double Bowl||Double Bowl|
|Bowl Top to Bottom Depth (in.)||9||9||9||9|
|Bundle Type||Sink Only||Sink Only||Sink Only||Sink Only|
|Features||Corrosion Resistant,Heat Resistant,Insulated,Low Divide,Sound Dampening||Corrosion Resistant,Heat Resistant,Insulated,Low Divide,Sound Dampening||Heat Resistant||Corrosion Resistant,Sound Dampening|
|View Product||View Product||View Product||View Product|