One Piece Dual Flush Toilets

4 one piece dual flush toilets from DeerValley, Jastoeny, Swiss Madison and more. Prices run $215 to $312.

One-piece toilets whose title also says dual flush. The listing says the gallons for each button.

We do not pick by hand: a toilet is here because its listed specs pass the checks.

DeerValley

One-piece, Elongated, Dual flush, 1.5 to 1.6 GPF

+Elongated bowl for added seating comfort

+Dual flush offers a reduced-volume option

+Standard seat height for everyday use

$215.27-10%Was: ~~$239.19~~

as of 11/04/2026 22:30 PST - Details

Swiss Madison

One-piece, Dual flush, 1.5 to 1.6 GPF, 10 in

+Dual flush offers 1.1 and 1.6 GPF options

+One-piece design has no seam between tank and bowl

+10 inch rough-in suits tight spaces

−Square bowl is less comfortable than round or elongated shapes

$312.17

as of 11/04/2026 05:36 PST - Details

Swiss Madison

One-piece, Round, Dual flush, 1.5 to 1.6 GPF

+Compact round bowl fits smaller bathrooms

+Dual flush lets you choose water volume

+One-piece construction has no seam at the tank

−Round bowl offers less seat area than elongated

$240.25

as of 11/04/2026 04:41 PST - Details

Vevor

One-piece, Elongated, Dual flush, 1.5 to 1.6 GPF

+One-piece design with no seam between tank and bowl

+Dual flush with 1.1 and 1.6 GPF options

+Elongated bowl for added seating space

$299.99

as of 11/04/2026 07:36 PST - Details

Compare specs

Pieces	Bowl shape	Flush	Gallons per flush	Rough-in	Spec score	Price
One-piece	Elongated	Dual flush	1.5 to 1.6 GPF	10 in	n/a	$215.27 as of 11/04/2026 22:30 PST - Details
One-piece		Dual flush	1.5 to 1.6 GPF	10 in	n/a	$312.17 as of 11/04/2026 05:36 PST - Details
One-piece	Round	Dual flush	1.5 to 1.6 GPF	10 in	n/a	$240.25 as of 11/04/2026 04:41 PST - Details
One-piece	Elongated	Dual flush	1.5 to 1.6 GPF	10 in	n/a	$299.99 as of 11/04/2026 07:36 PST - Details

Spec scores, pros and cons, and prices are explained in the How it works section of the About page.