What’s The Best Bathroom Investment? We Review 3 Sterling Toilets Below (Expert Analysis)

Sterling has been in business for over a century now.

Since being acquired by the inimitable Kohler in 1984, Sterling continues to provide affordable and intelligently-designed toilets with a focus on design.

Today, we’ve got the 3 best models in the small but impressive Sterling line-up. We’ll get straight down to business right now.

1) Sterling Windham Elongated Two-Piece (404705-0)

Comfort is uppermost

The classic two-piece layout combined with an elongated bowl means even large adults will find the Windham comfortable with plenty of room for maneuver.

The ADA-compliant seat is positioned just like a regular chair. This makes getting up or down from the toilet simple even if you’ve got arthritis or mobility problems.

The only real downside to this is that the Windham does occupy a reasonably large footprint so make sure you’ve got the space to accommodate.

Remarkably water-efficient without sacrificing flushing power

Using just 1.28 gallons of water per flush, the Windham comes in well below WaterSense suggestions for water-efficiency.

Despite such economy, you won’t end up sacrificing flushing power, though. The sleek surface is designed so you’ll get no clogging and no waste stuck to the sides of the bowl either.

Two-piece configuration simplifies cleaning and maintenance

Although the two-piece layout demands more bathroom real estate, if you need to carry out routine maintenance or any repairs, you’ll be delighted with the easy access.

Combine this with the glazed trapway and your input should be kept to an absolute minimum.

Installation straightforward with everything needed thrown in

Aside from the supply lines, you’ll get everything you need for installation bundled.

Whether you choose to call in a plumber or to go the DIY route, you should be up and running in no time.


  • Right-height seat ADA-compliant and makes standing and sitting straightforward even if you’ve got mobility problems
  • Elongated bowl for extra comfort
  • Meets WaterSense guidelines for water-efficiency


  • A few complaints about the float sticking

2) Sterling Karsten Elongated Two-Piece (402028-0)

Flexible dual-flush mechanism

This simple but effective two-piece from Sterling comes with a dual-flush mechanism which is easy to press and use.

For liquid waste, the 0.8 GPF partial flush uses half as much water as the WaterSense guidelines for water conservation. When you have bulkier and more stubborn waste, though, the full flush steps in to send everything where it belongs.

Sleek design but not a case of form over function

Despite the two-piece design, the Karsten exhibits an enviable attention to detail and the toilet looks slick even though it’s reasonably bulky.

The clean lines don’t come at the expense of functionality, though. The Karsten gets the job done without complaint.

Built to last

As with all Sterling toilets, quality control is outstanding while build quality means you should have a toilet to last you for years.

If you do run into any problems, customer care is responsive.

Kohler build without the price tag

If you’re looking to buy into the brand heritage of Kohler without spending a fortune, the Sterling Karsten lets you do precisely that.

Touches like the sanitary guard to minimize water getting under the tank and the powerful dual-flush are appreciated at this price-point.


  • Flexibility of dual-flush mechanism to give you economy and performance combined
  • Sanitary guard prevents splashback of liquid under the tank
  • Standard 12-inch rough-in for ease of installation


  • Not ADA-compliant in terms of seat height

3) Sterling Rockton (402088-0)

Dual-flush convenience offering power and water-efficiency

Another dual-flush toilet from Sterling, the Rockton gives you the choice of 0.8 GPF and 1.6 GPF flushes depending on the type of waste you’re dealing with.

By taking advantage of this high-efficiency toilet, you could save in excess of 16,000 gallons of water over the course of the year.

So, do your part for the environment and for your bank balance with the Rockton in the house.

Great meeting point of comfort and space-saving design

The elongated bowl gives large adults ample space when seated. Unlike most toilets with this layout, the Rockton doesn’t demand too much room for installation.

With lean, low looks and an enviable degree of comfort on offer, the Rockton delivers across the board.

Comfort-height seat in line with ADA requirements

If you’re struggling with mobility, it always pays to look for ADA-compliant seats. These will be positioned at the same height as a standard chair.

Sterling nails this and the Rockton couldn’t be easier to get up or down from.

Rock-solid 5-year warranty inspires confidence

To ice the cake, Sterling serves up a 5-year limited warranty removing all trepidation from purchase. And, with a solid build and powerful technology baked in, we don’t imagine you’ll be running into any problems at all.


  • Plenty of room thanks to elongated bowl
  • Dual-flush mechanism for your convenience
  • Slimline tank and low profile design ideal for minimalist bathrooms


  • Reasonably expensive compared to some of the competition


The Kohler-owned Sterling makes a great choice if you’re looking for performance, build quality and affordability rolled into one.

We’ve highlighted what we consider to be the best 3 Sterling toilets but we’ve got plenty more on offer here at around Top Ten Water. Browse our comprehensive collection of toilets by brand or type. We’re confident we’ve got something for all tastes and budgets here.

Come back soon and make sure to bookmark our site.

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