Skip to content

Brondell Swash EcoSeat, round review

A non-electric dual-nozzle bidet seat for round toilets, 18.47 x 14.34 in, with a sittable lid.

What the maker puts in writing

  • “You’ll experience a soothing, freshwater wash that leaves you feeling clean and rejuvenated. Plus, this economical bidet requires no electricity or batteries”
  • “Enjoy dual nozzles for rear and front washes, a gentle closing seat, and sturdy, sittable lid”
  • “This round bidet toilet seat measures 18. 47” x 14. 34” x 2. 55” and can easily be self-installed in minutes—no plumbers necessary!”
  • “This bidet fits round toilets… The textured chrome dial accent adds an elegant touch”
  • Products designed to protect essential resources, reducing toilet paper and energy use

Eighteen point four seven inches

That is the most useful thing on this page, and the reason to buy a Brondell rather than one of the cheaper seats here.

A replacement seat has to fit the bowl, and there are two bowl shapes. Measure from the center of the seat bolt holes to the front of the rim: about 16.5 inches is round, about 18.5 is elongated.

Brondell sells both and publishes both:

Round — 18.47 x 14.34 x 2.55 in — $89.99 Elongated — 20.03 x 14.39 x 2.55 in — $89.99

One and a half inches of length, and on October 29, 2026, no difference in price.

The homfan seat on this shelf says elongated and publishes no dimensions at all. Getting this wrong is a return, not an adjustment.

A lid you can sit on

Sturdy, sittable lid.

Many are not — and bidet seats especially, because the lid often covers a plastic housing full of valves and nozzle plumbing rather than resting on the porcelain rim.

People sit on toilet lids. To put socks on, to watch a child in the bath, while a faucet runs.

Brondell publishes this on both its seats and is the only maker on this shelf that mentions it. The homfan publishes a soft-close lid instead, which is a different and also real virtue.

Ambient water temperature

Which is the polite way of saying cold.

There is no heater, because there is no electricity: no cord, no outlet, no batteries. The water arrives at whatever the cold supply is, which in February is genuinely cold.

Brondell puts it in the title. The BIGCOW and Vestomeli listings here say cold water outright.

every product on this shelf is cold water only. Warm water needs either electricity or a tee into the hot supply under the sink, and nothing here does either. If that is the deciding issue, this is the wrong shelf entirely.

What ninety dollars does not buy

Nothing about the nozzles between uses. That is the hygiene question of this product category, and three cheaper products on this shelf address it: LUXE with a guard gate the nozzles retract behind, homfan and Vestomeli with self-cleaning.

Both Brondell seats are silent on it, at twice the price of the LUXE.

No warranty published on this listing either.

And it is worth knowing the alternative: the BIGCOW attachment is $24.99, fits under the seat you already own, needs no bowl measurement, and publishes all-stainless lead-free water parts. What it does not give you is a seat with a slow-closing lid, or a company with a long record in this product.

Availability

Available at around $89.99 on Amazon.com when we checked on October 29, 2026, for delivery to a US address.

Stock and prices on Amazon.com move without notice; the button above opens the live listing.

Prices quoted in this text were read on October 29, 2026. The live price is at the top of the page.

Strengths, and the catches

Strengths

  • Dimensions published to the hundredth of an inch, which is the only way to be sure a replacement seat fits
  • A lid stated to be sturdy and sittable, which many toilet seat lids are not
  • The same price as the elongated version, for the same seat sized to a round bowl

Compromises

  • Publishes nothing about shielding or cleaning the nozzles, where three cheaper products on this shelf do
  • Ambient water temperature means cold supply water, with no heater and no hot supply
  • Ninety dollars, against $24.99 for an attachment that fits any seat

Specifications

Power requirementNONE — no electricity, cord or batteries. A replacement seat, self-installable in minutes with no plumber. 2.9 lb (1,306 g), the lightest replacement seat here. No warranty is published on this listing.
Water supply connectionAmbient cold supply, WITH NO HEATER.
NozzlesDual — rear and front washes, POSITIONABLE. Neither a nozzle shield nor self-cleaning is published by the maker.
Nozzle adjustmentThe nozzles are positionable and the pressure is adjustable, on a textured chrome dial.
Seat length18.47 in — A ROUND BOWL, and 1.56 in SHORTER than the maker's own elongated version on this shelf, at the same $89.99 on October 29, 2026. Length is the whole decision between them: measure your bowl first.
Seat width14.34 in, 2.55 in thick.
Hinge hole spacingNOT PUBLISHED — the US standard is 5.5 in, and this listing does not confirm it.
HeatingNONE — ambient cold supply. The seat closes gently and the lid is sturdy and sittable.
Amazon referenceB0815BNKLV
EAN0819911014033

The questions we get

How do I know whether my bowl is round or elongated?

Measure from the center of the two seat bolt holes at the back to the front edge of the rim. About 16.5 inches is a round bowl; about 18.5 inches is elongated. Brondell sells both on this shelf and publishes both sets of dimensions — 18.47 x 14.34 in for this round seat and 20.03 x 14.39 in for the elongated — which makes it the only maker here you can check against your own bathroom before ordering. Fit an elongated seat on a round bowl and it overhangs the front; fit a round seat on an elongated bowl and there is a gap at the front with the hinges pulled forward.

What does "ambient water temperature" mean?

Cold. It is the polite description of a bidet with no heater: the water arrives at whatever temperature the cold supply is, which in winter is genuinely cold. Brondell at least says so in its own title, and the BIGCOW and Vestomeli listings on this shelf say "cold water" outright. every product here is cold-water only. Warm water requires either electricity, to heat it, or a tee into the hot supply under the sink — and nothing on this shelf does either. If that is the deciding factor, this is the wrong shelf.

What is a sittable lid, and why mention it?

A toilet lid strong enough to sit on. Many are not — particularly on bidet seats, where the lid often covers a plastic housing full of valves and nozzle plumbing rather than resting on the rim. People sit on toilet lids: to put socks on, to supervise a child in the bath, while running a faucet. Brondell publishes a "sturdy, sittable lid" on both of its seats, and it is the only maker on this shelf that addresses it. The homfan here publishes a soft-close lid instead, which is a different virtue.

Against the closest bathroom fittings on price

Same category, nearby prices, between bathroom fittings. What remains is the specifications every one publishes — half empty, a column is no use.

Model Price Power requirementWater supply connectionNozzlesNozzle adjustment
Brondell Swash EcoSeat, round $90 NONE — no electricity, cord or batteries. A replacement seat, self-installable in minutes with no plumber. 2.9 lb (1,306 g), the lightest replacement seat here. No warranty is published on this listing.Ambient cold supply, WITH NO HEATER.Dual — rear and front washes, POSITIONABLE. Neither a nozzle shield nor self-cleaning is published by the maker.The nozzles are positionable and the pressure is adjustable, on a textured chrome dial.
Brondell Swash EcoSeat, elongated $90 NONE — no outlet, cord or batteries. A replacement seat, self-installable in minutes with no plumber. The catalog also lists 20 × 14.4 × 0.98 in (509 × 366 × 25 mm). No warranty is published on this listing.Ambient cold supply, with no heater.Dual — rear and front washes, and the nozzle can be positioned to preference. Neither a nozzle shield nor self-cleaning is published by the maker.The nozzle is positionable and the pressure is adjustable, on a textured chrome dial.
homfan raised non-electric bidet seat $57 NONE — no electricity and no complex plumbing, stated RENTAL-FRIENDLY with no permanent modification. A REPLACEMENT SEAT: it takes the place of your existing toilet seat. 16.2 × 5.67 × 22.1 in (411 × 144 × 562 mm), 2,572 g — the heaviest item on this shelf. THE TITLE SAYS BIDET TOILET SEAT AND TWO BULLETS CALL IT A BIDET ATTACHMENT, which are two different products; what arrives is a seat.Cold only.Dual — separate rear and feminine washing, SELF-CLEANING ON BOTH THE NOZZLES AND THEIR SPRAY PATHS, which is the most thorough cleaning claim on this shelf. No nozzle shield is published; self-cleaning is the stated protection.Pressure by a dual lever system. The angle is not published.
Vestomeli adjustable-angle bidet attachment $50 NONE — no electricity. An attachment, fitting under the seat you already have, installation stated at ten minutes. 5 × 7.01 × 2.01 in (127 × 178 × 51 mm). No weight and no warranty are published.Cold only. THE WATER PART MATERIALS ARE NOT PUBLISHED, where BigCow names stainless steel throughout and Luxe names metal-ceramic valves and steel hoses.Dual — rear wash and a pre-cleaning mode for women. SELF-CLEANING IS STATED IN THE TITLE, and no nozzle shield is published.THE ANGLE IS ADJUSTABLE — THE ONLY ANGLE ADJUSTMENT ON THIS SHELF, and the one thing here that lets you aim it rather than move yourself. Pressure is set by a circular rotary knob, described as easy for the elderly and children.

Where the models diverge, in bathroom fittings

  • If price decides: Vestomeli adjustable-angle bidet attachment, at $50.

The price on Amazon.com

This model is listed on Amazon.com, at ≈ $90 at the last reading. Listed is not the same as in stock: availability changes daily, and the buy box shows the live price.

Details checked on October 29, 2026.

Who buys this one, among bathroom fittings

A round toilet bowl, where a published measurement matters more than a long feature list

What buyers actually choose

Amazon reports what buyers took in the month before this page was last checked: at least 1,000.

The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.

Sources

Specifications: the manufacturer sheet for bathroom fittings and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.

How we assess these bathroom fittings