How it works
One screen, installed once, that nobody can take out
SemperScreen® is the only non-removable permanent sink screen. It captures food debris at the drain opening, before anything reaches the pipe, and it stays in place whoever is using the sink.
What happens at the drain
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Debris stops at the opening
Food scraps, peelings, coffee grounds and rice hit the screen at the top of the drain instead of travelling into the pipe where they collect.
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Water keeps moving
Proprietary double-walled technology means the perforation surface area exceeds the connecting pipe, so the screen captures debris without becoming the new bottleneck.
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You scoop, once in a while
Whatever is caught sits on top where you can see it. It goes in the bin or the compost caddy in a couple of seconds.
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Nothing changes when you are not looking
The screen cannot be popped out, lost, or left off, so the drain is protected identically on the day it is fitted and two years later.
Why non-removable is the whole point
A removable basket protects a drain only while somebody remembers to put it back. Lift it out to empty a pot, leave it on the counter, and the drain is open until the next person notices. That is human error that no training program fixes.
SemperScreen® mounts into the drain body during installation. There is no lift-out step, nothing to misplace, and nothing for a tenant, a guest, or a new member of staff to defeat. Protection stops depending on behaviour.
Find what properties are best for non-removable sink screens on the what is a sink screen page.
Fitting it
Installation takes ~15 minutes per drain. It is a retrofit into the existing drain assembly with no plumbing modifications, so it does not need a re-pipe, a permit conversation, or a specialist.
It fits standard 3½" drains, which covers the large majority of kitchen sinks. Unusually thick or older basins need a modification that adds about 5 minutes per screen.
Installation instructions and fitting videos are on the support page.
What it is made of
| Material | Polished stainless (304 stainless steel) |
| Construction | Proprietary double-walled technology; perforation surface area exceeds the connecting pipe |
| Fits | Standard 3½" kitchen sink drains |
| Connection | Custom tube nut for 1-1/2" tailpiece, giving more thread contact than a typical sink assembly |
| Certification | ASME A112.18.2-2020 / CSA B125.2-20 |
| Finish | Brushed trim ring with laser etching |
| Weight | 1 lb |
| Warranty | Lifetime residential. B2B installations carry a 5-year commercial warranty, and rentals count as commercial. |
Find out more about how we know we built a quality product on the certifications and testing page.
Find out more about the benefits across a portfolio on the properties and facilities page.
Cleaning it
Just scoop it out! Debris collects on top of the screen where you can see it and goes into the bin or the compost caddy. Nothing to disassemble, no filter to replace, no moving part to fail.
Holding water in the basin
Because the screen does not lift out, filling the sink needs a stopper made to sit on it. The SemperStopper™ is produced specifically for that, at 3" x 1-1/8" x 3".
Ready to stop the call-backs
One install, then nothing to manage. Certified, retrofit, and covered by a lifetime residential warranty.
Fitting more than one kitchen? The
case of 12
and the
SemperStopper™ case of 12
are sized for multi-unit installs.
Manage a portfolio and want to reduce unpredictable, reactive maintenance? See our
integrated facilities management page.
