The complete guide
How to Choose a Kitchen Sink Waste Plug and Strainer That Actually Fits
The small part that causes the biggest kitchen annoyance
A sink that drains slowly is one of those problems you tolerate for far too long. You notice it one evening, decide it is probably fine, and six weeks later you are standing over a bowl of grey water with your sleeves rolled up. In most homes the cause is not a plumbing fault. It is a few weeks of rice, tea leaves, fat and peelings slipping past a drain that has nothing guarding it.
The guard is a strainer basket. It sits in the mouth of the waste, catches what you do not want going down the pipe, and lifts out so you can tip the lot into the bin. It costs very little and it solves the problem at the point where it starts. If your sink came with a flimsy one, or the original plug has gone missing somewhere between house moves, replacing it is a five second job.
This guide covers what to look for, how to measure, and how to keep a strainer working well for years.
How a basket strainer works
Picture a shallow metal cup that drops into your drain hole. The top face is drilled with holes. Water runs through those holes and into the waste pipe. Anything larger than the holes stays in the cup.
The better versions add a second job. In the middle of the basket sits a rubber section that seals against the surrounding metal. Push it down and water stops going anywhere, so you can fill the bowl to soak a baking tray or wash glasses by hand. Lift it and the water goes. That is why the term basket waste stopper gets used, because the one part filters and plugs.
The alternative is owning two separate things, a mesh filter and a rubber plug, and then losing one of them. Anyone who has rummaged behind a dish rack looking for a plug knows how that goes.
The hole size matters more than most buyers expect. Very fine mesh sounds better on paper, since it catches everything. In practice it catches everything and then stops working. Flour, tea leaves and coffee grounds glue themselves into fine mesh within a couple of washes, and you end up with standing water for a different reason. Twenty large holes, as on this set, keeps the water moving. You accept that the very finest particles go through, in return for a basket that still drains on a Thursday night when you are tired.
Getting the size right
This is the one thing worth slowing down for. Sink waste outlets are not standardised across every manufacturer, so buying on eye alone is a gamble.
Take a tape measure or a steel rule and measure straight across the inside of the drain opening, edge to edge, at the widest point. Use millimetres. Do not measure across the decorative rim or the flange that sits on the sink surface, because that is always wider than the hole itself.
These baskets are 79mm across and suit openings of roughly 79mm to 80mm. That is a common size for kitchen bowls and plenty of laundry tubs. If your measurement comes out at 76mm or 90mm, this is not the right part and no amount of pushing will change that. Too wide and it perches on top rather than seating. Too narrow and it drops into the waste, which is a far more irritating problem to fix.
Depth is the other dimension. These sit 2.5 cm deep, which gives room for scraps to collect without the basket filling after one meal. Shallow strainers look neat but need emptying constantly.
Why stainless steel is worth it here
A kitchen sink drain is one of the harshest spots in a house. It is wet almost constantly, it sees hot water, soap, acidic food waste and whatever cleaning product you favour. Chrome-plated plastic survives that for a while, then the plating lifts and the thing looks shabby.
Stainless steel resists rust and stands up to hot water without warping. It also takes a scrub without crumbling. The finish on this set is stainless steel in silver, which means it blends with a stainless bowl and does not look out of place in a composite or white sink either.
The weight is modest at 90 grams for the set, light enough to lift with one hand but solid enough to sit still rather than bobbing when the bowl fills.
Who this suits
Renters get good value from a drop-in part. There is nothing to fit, nothing to unscrew, and you can take it with you. Keeping the landlord's original plug in a drawer and using your own replacement sink plug is a sensible move.
Households that cook a lot will feel the difference quickest. Rice, pasta, vegetable trimmings and the bits that come off a roasting tray are exactly what a strainer is designed to stop.
Double bowl sinks are an obvious fit for a two pack, since you simply put one in each side. Single bowl households get a different benefit, which is a clean spare ready to go while the first one is being washed.
People with a sink waste disposal unit can still use these as a cover over the opening, but take the basket out before running the unit. Metal and disposal blades do not mix.
Living with it day to day
Good habits here are short. After the washing up, lift the basket out and tip it into the bin or compost caddy. Rinse under warm water. Put it back. That is the whole routine and it takes about ten seconds.
Once a week, or whenever it feels greasy, wash it properly in warm soapy water with a soft brush. Work the brush through the holes and around the underside of the rim, because that is where fat collects and where smells start. Dry it off with a cloth to keep water spots away.
Avoid steel wool and strong bleach-based cleaners. They scratch and dull the surface, and scratches give grime somewhere to sit. A normal dish brush is plenty.
The rubber centre is the part that will age first, as rubber always does. It hardens slowly over a few years and seals a little less tightly. That is the moment the second basket in the pack earns its keep.
One more thing worth saying plainly. A strainer stops solids. It does not stop grease. Hot fat poured down a drain will flow straight through the holes, cool in the pipe, and set like candle wax. Let fat cool in the pan, scrape it into the bin, then wash the pan. Combine that habit with a good anti clogging sink strainer and blocked kitchen pipes mostly stop being a thing that happens to you.
Common mistakes to avoid
Buying before measuring is the big one, and it is responsible for most returns on parts like this.
Leaving food sitting in the basket overnight is the second. The strainer is not a bin. Food left wet in a warm kitchen smells by morning, and people then blame the strainer rather than the habit.
Forcing a basket that is slightly too large into a drain is the third. You will mark the sink and you still will not get a seal. If the fit is wrong, swap it rather than fight it.
The short version
Measure your drain opening in millimetres before you buy anything. If it lands between 79mm and 80mm, this set fits. You get two stainless steel baskets, each 7.9 cm across and 2.5 cm deep, with 20 large holes for steady drainage and a rubber centre that plugs the sink when you want to fill it.
Tip it into the bin after each wash-up, give it a proper clean weekly, and keep fat out of the drain entirely. Do that and a part costing less than a takeaway will quietly prevent the sort of blockage that costs a plumber's call-out fee.