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Deal.ai › TOTO › Water Toilets
Toto
Toto Aquia IV Arc Washlet 2-Piece .9/1.28 GPF Dual Flush Elongated Comfort Height Toilet and S7 Bidet Seat

Toto Aquia IV Arc Washlet 2-Piece .9/1.28 GPF Dual Flush Elongated Comfort Height Toilet and S7 Bidet Seat

Best price now

$1,896.59at AmazonChecked 7 h ago

Compared across 2 stores. Prices are checked against each store and labelled with when. As an Amazon Associate, Deal.ai earns from qualifying purchases.

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Price facts

  • Lowest price today: $1,896.59 at Amazon (checked Nov 10, 2026).
  • Checked at 2 stores.

Our take on the Toto Aquia IV Arc Washlet 2-Piece .9/1.28 GPF Dual Flush Elongated Comfort Height Toilet and S7 Bidet Seat

A two-piece elongated toilet paired with Toto's S7 bidet seat. The Aquia IV Arc uses Toto's Tornado and Dynamax flushing with a 0.9/1.28 GPF dual flush, and the comfort-height bowl sits taller than standard toilets. The S7 seat adds a heated washlet with warm water, a heated seat and a dryer. It suits buyers who want a full bidet toilet without a one-piece unit, and it competes with Toto's own Washlet+ combos and with Kohler and Brondell bidet seats on features rather than on looks.

Best forBuyers wanting a complete bidet toilet in one purchaseTaller users and anyone with knee or back troubleHouseholds switching between light and full flushesBathrooms where a one-piece toilet won't fit the rough-in
Pros
  • Dual flush at 0.9 and 1.28 GPF cuts water use on light flushes
  • Comfort-height elongated bowl is easier to sit down on and stand up from
  • Tornado flush with Dynamax trapway clears the bowl with less water
  • S7 seat brings heated water, heated seat and a warm-air dryer
  • Washlet+ design hides the bidet cord and water line behind the toilet
  • Widely available in white with standard 12-inch rough-in
Cons
  • Two-piece design has a visible seam and more places to clean than a one-piece
  • Bidet seat adds a power cord and a water supply connection to plan for
  • S7 remote and settings take time to learn
  • Replacement washlet parts and service cost more than a plain seat
  • Elongated bowl needs more floor space front to back

Toto Aquia IV Arc Washlet 2-Piece .9/1.28 GPF Dual Flush Elongated Comfort Height Toilet and S7 Bidet Seat prices at every store

  • Lowe'sNew

    In stock

    $2,262.37Free shippingChecked 6 h ago
    Visit Lowe's
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $1,896.59Free shippingChecked 7 h ago
    Visit Amazon

Store links may earn us a commission. Some prices via Klarna.

Toto Aquia IV Arc Washlet 2-Piece .9/1.28 GPF Dual Flush Elongated Comfort Height Toilet and S7 Bidet Seat price history

Lowest price we've seen: $1,896.59 on Nov 10 at Amazon. Tracked across 2 stores since Nov 10.

What reviewers say

Owners of the Aquia IV line praise the strong, quiet flush and the comfort-height bowl, and S7 washlet owners like the warm water and heated seat. Complaints center on the two-piece seam, the learning curve of the remote and the cost of washlet repairs.

What people mention
  • Flush powerPraisedOwners say the dual flush clears waste reliably even on the lower 0.9 GPF setting.
  • Comfort heightPraisedReviewers with knee or back issues say the taller bowl is noticeably easier to use.
  • CleaningCriticisedThe two-piece seam and the seat's nooks take more scrubbing than a one-piece toilet.
  • ControlsMixedUsers like the S7 features but find the remote and its settings take practice.
  • InstallationMixedSetup is manageable, but the bidet seat needs power and a water line near the toilet.
  • Washlet upkeepCriticisedSome owners report that repairs and replacement parts for the S7 are expensive.

Specifications

Flushing Type
Dual FlushSource
Mount Location
Wall Mounted, Floor MountedSource
Flushing Capacity (Min) (gal)
0.9Source
Bowl/Seat Shape
ElongatedSource

Questions and answers

Does the S7 seat need a power outlet?
Yes. The washlet seat plugs into a standard outlet, so plan for one near the toilet. Toto's Washlet+ design routes the cord and water line behind the bowl to keep them out of sight.
What is the difference between the Aquia IV and the Aquia IV Arc?
The Arc refers to the bowl and tank styling of this two-piece model. The flushing system and dual-flush ratings are the same Aquia IV platform.
Is the bowl elongated or round?
It is elongated, which gives more seating room front to back. Check your bathroom's floor space, since elongated bowls need more depth than round ones.
What rough-in does it use?
It fits a standard 12-inch rough-in. Confirm your measurement from the finished wall to the drain before ordering.
Can I use the toilet without the bidet functions?
Yes. The toilet flushes normally on its own, and the S7 seat works as a heated seat even if you leave the wash functions off.
What is in the box?
The two-piece toilet with tank, bowl, seat mounting hardware and the S7 washlet seat. A supply line and wax ring are usually needed separately.
Where is the Toto Aquia IV Arc Washlet 2-Piece .9/1.28 GPF Dual Flush Elongated Comfort Height Toilet and S7 Bidet Seat cheapest?
At Amazon, for $1,896.59, as of our latest check.
Where can I buy the Toto Aquia IV Arc Washlet 2-Piece .9/1.28 GPF Dual Flush Elongated Comfort Height Toilet and S7 Bidet Seat?
2 stores we checked sell it, including Lowe's, Amazon.

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Stores we've priced the Toto Aquia IV Arc Washlet 2-Piece .9/1.28 GPF Dual Flush Elongated Comfort Height Toilet and S7 Bidet Seat at

  • Lowe's deals and prices

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Color
WhiteSource
Flushing Capacity (Max) (gal)
1.28Source