This is our top selling tank lid. It fits most efficient toilets that are smaller than 17" wide measured with the tank lid off. This sink can expand up to 21" with the purchase of our expander kit sold separately (see below). Make sure to compare to our other lids for the best size.Shop Now
This top-rated lid is the best fit for 1.6 GPF toilet tanks and some 1.28 GPF tanks that are larger than 17" wide (measured with the tank lid off). It has an adjustable positioning feature.Shop Now
Customize my Sink Twice for a top button!
We can drill a hole in Sink Twice so it will function with your top button dual flush (must coordinate size and location of button with Seller for custom work). Coordinate with seller by text at 303-345-3508 or by email at firstname.lastname@example.orgShop Now
Fluidmaster 400AH or 400H PerforMAX valves are recommended. Additional SinkTwice products are featured below.