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Kitchen Sink Strainers & Flanges
The strainer is the fitting that sits in the sink opening and connects it to the waste below. It is small, it is frequently sold separately from the sink, and it is the part most often forgotten until installation day.
Three things to check
- Opening size. Most kitchen sinks use a 3½" drain opening. Confirm yours before ordering — bar and prep sinks are often smaller.
- Finish. The strainer is visible every time the sink is empty. Match it to the faucet, not to the sink.
- Disposal or not. A garbage disposal uses its own mounting flange rather than a standard strainer. If a disposal is going in, the strainer you need is different.
Basket, grid or disposal flange
A basket strainer seals to hold water in the bowl and lifts out to drain. A grid or non-closing strainer catches debris but does not seal, which suits a prep bowl you never fill. A disposal flange is dictated by the disposal unit itself.
Buying from Eunoia
Over 3,000 of our products ship free anywhere in Canada — look for the free-shipping badge on the product page. Everything ships free within Ontario, and any order over $3,000 ships free Canada-wide. Send us your sink model and we will confirm which strainer fits.
Also see: Kitchen Sinks · Kitchen Sink Accessories · all Kitchen
Frequently asked questions
Does a new sink come with a strainer?
Frequently not, and it is the most common missing piece on installation day. Check the product page before delivery.
What size strainer do I need?
Most kitchen sinks take a 3½" opening. Bar and prep sinks are often smaller — measure rather than assume.
Can I use a standard strainer with a garbage disposal?
No. A disposal comes with its own mounting assembly and replaces the strainer in that bowl.

