Round or elongated, measured on the bowl you already own · review
Kohler Brevia Quiet-Close elongated seat review
A KOHLER plastic seat with Quiet-Close, Grip-Tight bumpers that stop it sliding, Quick-Attach hardware and quick-release hinges — and a fit for compact elongated bowls too.
Quiet-Close seat and lid; Grip-Tight bumpers hold the seat firmly in place
Quick-Attach hardware for fast, secure installation
Color-matched plastic hinges
Fits most elongated and compact elongated toilets
Not returnable to Kohler Co. if opened or outside the original packaging
Two bowl lengths
Compact elongated toilets are common in small American bathrooms, and a standard elongated seat overhangs them. At 18 inches, the Brevia is stated to fit both. On this shelf, no other seat says so.
Two ways to stop sliding
Grip-Tight bumpers under the seat hold it to the rim; Quick-Attach hardware fixes it from above. Together they target the seat that shifts every time someone sits.
Read before opening
The fifth bullet is a warning: KOHLER does not take toilet seats back once opened. Measure from the bolt holes to the front of the bowl before you cut the plastic.
Availability
Available at around $31.44 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
Fits compact elongated bowls as well as standard elongated, the only seat here that says so
Grip-Tight bumpers against sideways sliding, plus quick-release hinges for cleaning
Quick-Attach hardware from a major toilet maker
Compromises
Plastic hinges, color-matched rather than metal
Not returnable to Kohler once opened, as the listing warns
No load capacity, and a one-year warranty
Specifications
Length
18 in — spec table
Width
14.18 in — spec table
Hinge hole spacing
Not stated; standard American toilets have bolt holes 5-1/2 in apart
Material
Plastic, with color-matched plastic hinges — stated
Hinge type and fixing
Quick-Attach hardware; Grip-Tight bumpers hold the seat in place — stated
Quick-release
Yes — quick-release hinges, per the spec table
Stated load capacity
Not stated
Warranty
1-year limited
Amazon reference
B07CV3B8KR
EAN
0885612614537
The questions we get
What is a compact elongated toilet?
An elongated bowl shortened to fit a small bathroom, between round and full elongated in length. Many seats sold as elongated overhang it. KOHLER states the Brevia fits both, at 18 inches long.
What are Grip-Tight bumpers?
Rubber pads under the seat that grip the rim of the bowl so the seat does not slide sideways when you sit down. They address the same complaint as Mayfair's stay-tight hinges, from the other side.
Can I return it if it does not fit?
The listing says KOHLER does not accept toilet seats back once opened or out of their packaging. Measure the bowl before opening the box.
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
Length
Width
Material
Hinge type and fixing
Kohler Brevia Quiet-Close elongated seat
$31
18 in — spec table
14.18 in — spec table
Plastic, with color-matched plastic hinges — stated
Quick-Attach hardware; Grip-Tight bumpers hold the seat in place — stated
Plastic, solid construction for added weight — stated
Fast and secure installation stated to help prevent loosening; non-slip seat bumpers
Where the models diverge, in bathroom fittings
If price decides: Bemis 7300SLEC slow-close elongated seat, at $28.
Highest Length in the table: Mayfair Linden slow-close wood seat (19 in — stated).
Highest Width in the table: Bemis 7300SLEC slow-close elongated seat (14.3 in — stated).
The price on Amazon.com
This model is listed on Amazon.com, at ≈ $31 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 KOHLER or other compact elongated toilet, where a standard elongated seat would overhang
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.
Elongated, 14.3 × 19 in · plastic · slow-close seat and lid · Easy Clean quick-release hinges · made in USA · 1-year warranty
The cheapest seat here, from the company that makes most American toilet seats: a USA-made plastic elongated seat with slow close and quick-release hinges for cleaning.
Best for: Replacing a worn seat on any standard elongated toilet for the least money
Elongated, 18.5 × 14 in · plastic, solid construction · slow close · non-slip seat bumpers · 4.2 lb · 1-year limited warranty
Delta's plastic elongated seat with slow close and non-slip bumpers, described as solid for added weight — six short bullets, and the highest price of the four.
Best for: A standard elongated toilet in a house already fitted with Delta faucets