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One Piece Dual Flush Toilets

All toilets

35 one piece dual flush toilets from DeerValley, Jastoeny, Swiss Madison and more. Most cost $215 to $499, and half cost less than $300.

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.

Top brands: DeerValley (7)Jastoeny (5)

All filtersFilters (1)×
Seat height: Chair height  ×Clear all
BrandDeerValley7Jastoeny5Casta Diva3WinZo2Bayroll1Canest1Eridanus1Homlylink1
Show all 21Horow1Hrveocei1Jojoka1Kohler1Los Flexi1Maxsa Innovations1Mrejartom1Stmhom1Swiss Madison1TONA1Vevor1Vipbear1Woodbridge1
PiecesOne-piece35
Bowl shapeElongated27Round2
FlushDual flush35
Gallons per flush1.5 to 1.6 GPF151.2 to 1.4 GPF9
Seat heightChair height35Standard height3
Rough-in12 in1810 in1
Bidet built in or includedBidet built in or included2
CompactCompact16
PriceUnder $1501Under $2002Under $2506Under $30013Under $4007Under $5003Under $6001Under $7001
Show all 11$250 & above21$300 & above13$500 & above3
Clear allShow 35 toilets
Seat height: Chair height  ×35 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
DeerValley

One-piece, Elongated, Dual flush, 1.2 to 1.4 GPF

+Elongated bowl for added seating comfort
+Chair height seat is easier to sit down and stand up from
+Dual flush offers a reduced-volume option
$215.00-17%List: $258.00
as of 11/04/2026 22:30 PST - Details
Horow

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

+Dual flush option lets users choose a lower water volume
+ADA chair height of 17.3 inches eases sitting and standing
+Elongated bowl provides more seating room
−Flush volume of 1.5 to 1.6 GPF is typical, not low
$249.00-7%List: $269.00
as of 11/03/2026 23:26 PST - Details
Bayroll

One-piece, Round, Dual flush, 1.2 to 1.4 GPF

+Dual flush gives a choice of flush volumes
+Uses 1.2 to 1.4 GPF, a water-saving range
+Chair height seat is easier to sit down and stand up from
−Round bowl offers less seat space than elongated models
$349.00
as of 11/04/2026 21:56 PST - Details
Hrveocei

One-piece, Elongated, Dual flush, Chair height

+Dual flush option lets users choose a lower water volume
+One-piece design with no separate tank to clean
+Elongated bowl provides more seating room
−Soft closing seat is the only listed seat feature
$136.82
as of 11/03/2026 23:31 PST - Details
Vipbear

One-piece, Dual flush, Chair height

+Dual flush option allows water-saving liquid flushes
+One-piece design has no seam between tank and bowl
+Chair height suits users who prefer higher seating
−Lid is manual rather than automatic
$299.99
as of 11/04/2026 03:40 PST - Details
WinZo

One-piece, Dual flush, Chair height, 12 in

+One-piece construction has no seam between tank and bowl
+Dual flush offers two flush volumes
+Chair height seat is easier to sit down and stand up from
$269.46
as of 11/04/2026 08:35 PST - Details
Canest

One-piece, Elongated, Dual flush, 1.2 to 1.4 GPF

+Dual flush offers a lower-water option for liquid waste
+One-piece design has no seam between tank and bowl
+Chair height ADA-style bowl
$259.99-13%List: $299.99
as of 11/04/2026 22:12 PST - Details
Casta Diva

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

+Elongated bowl for added seating room
+Chair height seat for easier sitting and standing
+Dual flush option offers two flush volumes
−Uses 1.5 to 1.6 GPF, more water per flush than some models
$259.00
as of 11/04/2026 22:15 PST - Details
Casta Diva

One-piece, Elongated, Dual flush, 1.2 to 1.4 GPF

+Elongated bowl for added seating room
+Chair height seat for easier sitting and standing
+Dual flush option offers two flush volumes
−Flush volume ranges 1.2 to 1.4 GPF
$289.99
as of 11/04/2026 22:15 PST - Details
Casta Diva

One-piece, Elongated, Dual flush, 1.2 to 1.4 GPF

+Elongated bowl for added seating room
+ADA comfort height seat for easier sitting and standing
+Dual flush option offers two flush volumes
−Flush volume ranges 1.2 to 1.4 GPF
$229.99
as of 11/04/2026 22:15 PST - Details
Jastoeny

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

+Dual flush system with 1.5 to 1.6 GPF
+One-piece design with no gap between tank and bowl
+Compact footprint for smaller bathrooms
−Chair height seat rather than standard height
$309.99
as of 11/03/2026 23:39 PST - Details
WinZo

One-piece, Elongated, Dual flush, Chair height

+Macerating system for basements below the sewer line
+Dual flush for water-saving options
+One-piece elongated bowl
−Requires electrical power to run the macerator
$699.99
as of 11/04/2026 08:35 PST - Details
Swiss Madison

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

+One-piece construction has no seam at the tank
+Elongated bowl offers a longer seat area
+Dual flush lets you choose water volume
$252.93
as of 11/04/2026 04:39 PST - Details
DeerValley

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

+Elongated bowl for a larger seating area
+Dual flush offers two flush volumes
+One-piece design with no seam between tank and bowl
$224.00
as of 11/04/2026 22:30 PST - Details
DeerValley

One-piece, Dual flush, 1.5 to 1.6 GPF, Chair height

+Compact design suits small bathrooms
+Chair height seat is easier to sit down and stand up from
+Dual flush offers a reduced-volume option
$198.99
as of 11/04/2026 22:30 PST - Details
Maxsa Innovations

One-piece, Elongated, Dual flush, Chair height

+Elongated bowl for a larger seating area
+Dual flush offers two flush volumes
+One-piece design with no seam between tank and bowl
$314.99
as of 11/04/2026 22:45 PST - Details
Eridanus

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

+Elongated bowl for a longer seat area
+One-piece design with no seam between tank and bowl
+Dual flush option to save water on liquid waste
$299.00
as of 11/04/2026 22:48 PST - Details
DeerValley

One-piece, Elongated, Dual flush, Chair height

+Elongated bowl for added seating comfort
+Chair height seat is easier to sit down and stand up from
+Dual flush offers a reduced-volume option
No price recorded yet.
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
Jastoeny

One-piece, Elongated, Dual flush, Chair height

+12 inch rough-in suits standard-depth installations
+Dual flush offers a choice between two water volumes
+One-piece design has no seam between tank and bowl
No price recorded yet.
DeerValley

One-piece, Elongated, Dual flush, 1.2 to 1.4 GPF

+Elongated bowl for a larger seating area
+Dual flush offers two flush volumes
+One-piece design with no seam between tank and bowl
No price recorded yet.
Woodbridge

One-piece, Dual flush, Chair height

+Dual flush for water-saving options
+One-piece construction with no tank gap
+Chair height seat with soft close lid
No price recorded yet.
DeerValley

One-piece, Elongated, Dual flush, Chair height

+Elongated bowl for a larger seating area
+Dual flush offers two flush volumes
+One-piece design with no seam between tank and bowl
No price recorded yet.
Jojoka

One-piece, Elongated, Dual flush, 1.2 to 1.4 GPF

+Elongated bowl for a longer seat area
+One-piece design with no seam between tank and bowl
+Dual flush option to save water on liquid waste
$489.99
as of 11/04/2026 22:45 PST - Details
Jastoeny

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

+Compact footprint suits smaller bathrooms
+Dual flush offers a choice between two water volumes
+One-piece design has no seam between tank and bowl
$309.99
as of 11/03/2026 23:39 PST - Details

Compare specs

toiletPiecesBowl shapeFlushGallons per flushRough-inSpec scorePrice
One-pieceElongatedDual flushn/a$8,399.96
as of 11/03/2026 23:47 PST - Details
One-pieceElongatedDual flush1.2 to 1.4 GPF12 inn/a$215.00
as of 11/04/2026 22:30 PST - Details
One-pieceDual flush1.5 to 1.6 GPF12 inn/a$202.99
as of 11/04/2026 22:30 PST - Details
One-pieceElongatedDual flush1.5 to 1.6 GPF12 inn/a$249.00
as of 11/03/2026 23:26 PST - Details
One-pieceRoundDual flush1.2 to 1.4 GPF12 inn/a$349.00
as of 11/04/2026 21:56 PST - Details
One-pieceElongatedDual flush12 inn/a$136.82
as of 11/03/2026 23:31 PST - Details
One-pieceRoundDual flush1.5 to 1.6 GPF12 inn/a$319.68
as of 11/03/2026 23:26 PST - Details
One-pieceDual flushn/a$299.99
as of 11/04/2026 03:40 PST - Details
One-pieceDual flush12 inn/a$269.46
as of 11/04/2026 08:35 PST - Details
One-pieceElongatedDual flush1.2 to 1.4 GPF12 inn/a$259.99
as of 11/04/2026 22:12 PST - Details

Before you buy

Other uses

Bidet Seats649Laundry & Utility Fixtures69Bathtub Faucets & Showerheads15Bathroom Sinks80Bathroom Sink Vanities & Accessories100Bathroom Fixture Accessories5Bathroom Safety & Accessibility77Bathroom Storage & Mirrors78Kitchen Sink Aerators63Kitchen Sink Accessories95Water Dispensers & Coolers92Drain Strainers81

Popular filters

Elongated Toilets256Toilets with a Bidet165Chair Height Toilets1641.2 to 1.4 GPF Toilets160Dual Flush Toilets152Two-Piece Toilets146One-Piece Toilets138Toilets under $30078

Toilets by use

Macerating Toilets19Two Piece Chair Height Toilets65Elongated Chair Height Toilets111Compact One Piece Toilets41Wall Hung Dual Flush Toilets22

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