🌍 Worldwide shipping · 30-day returns · Rated Excellent on Trustpilot ★★★★½
Price
$115.67
White Plastic Toilet Sink Cover - 15.25” - 20” Surface Mount Utility Tank Cover w/Built-in Faucet & Sink for Handwashing & Flushing - Apartment Space & Water Conservation — image 1
Toilet TanksSinkTwice✓ In stock

White Plastic Toilet Sink Cover - 15.25” - 20” Surface Mount Utility Tank Cover w/Built-in Faucet & Sink for Handwashing & Flushing - Apartment Space & Water Conservation

$115.67
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About this item
  • Innovative Sink for Toilet Tank: Save thousands of gallons of water with our innovative tank toilet utility sink. This toilet top sink comes with an expansion kit and is compatible with a wide range of toilet models. Sink Twice Adaptable can be considered a default choice if dimensions for toilets are unknown.
  • Made In THE USA: Our toilet tank cover is manufactured in the USA from durable ABS plastic. These bathroom sinks are our best offering for most toilets that measure 16.8” to 20”, and are compatible with gravity fed (not jet fed or tankless) toilets.
  • How It Works: This small sink cover is fitted with a built-in faucet and sink. When the toilet is flushed, the refill valve will redirect water to the faucet and serve as a hand washing sink. The soapy water is then used to flush
  • Space Saver & Easy Install: This toilet sink combo is a huge space saver, has room for a soap container and the drain is specifically designed to prevent splashes. This toilet with built in sink can be installed easily without any tools in under 5 minutes. Use Alcolin Sticky Putty to make it more stable.
  • About Us: SinkTwice is proud to call itself a 100% family-owned small business. Sink Twice for toilet tanks are made with pride in our home state of Colorado. We care about our Mother Earth and are so delighted to be working with customers who feel the same way we do.
Product description

Sink Twice Toilet Sink (Adaptable): Save thousands of gallons of water every year using this innovative toilet tank sink! Among many other compatible toilets, our toilet with sink on top is compatible with Glacier Bay two piece lever flush, American Standard Reliant, American Standard Cadet 3, Delta Foundations 2 Piece, Toto Drake 2 Piece, Saniflo and Project Source Pro Flush toilet models (check out sizing charts to make sure your toilet fits with this model). This toilet top sink also is a major water saver, leak detector, and a space saver. This water saving toilet tank is made from durable ABS plastic and fits most standard toilets measuring 16.8” to 20”. Sink Twice Adaptable is also a great choice for narrower toilets that are 15.25” to 20” wide. Fitted with a flush mount sink, this mini utility sink is designed for handwashing and flushing. The water used for handwashing is used a second time for flushing. The patent-pending “fill cycle diversion” faucet of our hand sink directs clean water to the faucet for handwashing. To quickly change the rate of flow of water from the faucet, a small flow modifier (included) can be inserted into the black tee to control pressure to the faucet. If the modifier is inserted into the part of the tee pointing down, it will increase pressure to the faucet. To decrease pressure to the faucet, the small modifier should be inserted into the part of the tee pointing up before the tee is connected to the faucet tubing. You can use Alcolin Sticky Putty to improve stability. This toilet tank water saver is acclaimed as one of the cool bathroom accessories offered today. Set out on a path of water, space, and money saving! --- About Us: Sink Twice toilet sink combo for small bathroom is proud to call itself a 100% family-owned small business. Our products are made with pride in our home state of Colorado. We care about our Mother Earth and are so delighted to be working with customers who feel the same way we do.

Product details
Brand
SinkTwice
Manufacturer
SinkTwice
Colour
White
Size
15.25 in to 20 in

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
Excellent
4.5 average rating
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S
Sigalit
🇮🇱 · January 2026

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇦🇺 · November 2025

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 12 of 10 reviews

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