Our 17" sink lid installs in minutes without tools. It encourages frequent handwashing and even pays for itself with time!

Sink Twice

This top seller is for toilets 14" - 16.8" wide measured with the tank lid off, but the expansion kit (sold separately) allows this sink to fit toilets tanks up to 21.5" wide!

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Sink Again!

This medium-sized lid is our second most popular lid. It is generally fitted with 1.6 GPF toilet tanks and some 1.28 GPF tanks that are 17" -19.5" wide in the back, but 14" - 17.5" in the front (measured with the tank lid off). We have bigger and smaller sink sizes available. Please see our other lids as well and please check your tank measurements with the lids off first!

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For large rectangular toilet tanks please buy

Sink Bigger

This sink is 19.5" x 9.25" Please remember that our original "Sink Twice" can be purchased with an expander kit (sold separately) which allows our best seller to function with toilets from 14" wide to 21" wide.

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Custom sinks for top button systems

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 custom size and location of button hole with Seller). Coordinate with seller by text at 303-345-3508

Fluidmaster 400AH or 400H PerforMAX valves are recommended. Additional SinkTwice products are featured below.

Sink Twice Installation Video

These are the most impressive water-saving showers (for the price) in the world!

Rechargeable Camping Shower

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This expansion kit allows 17" sink to fit onto toilets as large as 21" and with various shapes.

Expansion Kit for 17" Sink Twice

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(buckets not included)

USB rechargeable Off-Grid Sink with Included Camping Shower

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Our Fill Cycle Diverters make toilets significantly more efficient (biggest water saving bang for the buck)

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