A sink drain is the fitting that sits in the bottom of a sink bowl and carries water into the pipes below, along with the strainer, stopper or catcher that keeps food and hair out of the plumbing. This collection covers the visible top part of that system for kitchens and bathrooms: drain assemblies, stoppers, covers and catchers you can fit or swap without replacing the sink. It belongs to our wider sink hardware range.
There are more than 140 items here, and they are inexpensive: list prices mostly run from around $18 to $30 per listing, with the full range from under $10 to near $60. Many are sold as multi-packs or combos, so check the count. Nearly all of the range is in stock. Stainless steel, silicone and black and brushed finishes are the most common materials.
Kitchen and Bathroom Drains Are Not Interchangeable
The first decision is which sink you are buying for, because the openings are different sizes.
- A kitchen sink drain uses a large opening, about three and a half inches across in most US sinks, and a basket strainer or a garbage disposal flange. Parts here include stainless baskets, stopper-and-strainer combos and disposal splash guards.
- A bathroom sink drain is much smaller and usually uses a pop-up stopper. Many bathroom basins also have an overflow hole near the rim, so to keep that sink overflow drain path working, the drain body needs side openings that let the water through.
- Utility and slop sinks have their own sizes; check the listing against your sink before you order.
Measure the opening at the top of the drain, not the pipe underneath, and compare it with the diameter in the product details.
Strainers, Stoppers, Covers and Hair Catchers Compared
- Basket strainers sit in the kitchen drain and catch food scraps while water runs. A strainer with fine mesh catches more, but needs emptying more often.
- Stopper combos add a seal so you can fill the bowl. A kitchen stopper is useful for washing dishes by hand or soaking pans.
- Catchers and covers rest on top of the drain. A silicone catcher flexes to fit several sizes and is easy to clean.
- Hair catchers for bathrooms either sit over the drain or slip inside it. A sink drain hair catcher is the simplest fix for slow basins in shared bathrooms.
- Disposal guards fit a garbage disposal flange, cutting splash-back and noise and keeping utensils out of the unit.
If you only need the removable basket for a kitchen sink, our sink strainer baskets page focuses on that part alone.
Material and Finish Choices
Stainless steel resists rust, tolerates hot water and looks at home in most sinks. Silicone is soft, flexible and quiet, and easy to bend clean. Plastic parts are the cheapest option and suit temporary or rental fixes. A black, matte, brushed or chrome finish lets you match a faucet or a dark composite sink, so check the finish name against your faucet before you buy.
Replacing a Kitchen Drain Body Step by Step
Swapping a strainer basket takes seconds. Fitting a new kitchen drain body takes a little more work:
- Disconnect the drain pipe under the sink and unscrew the old locknut.
- Lift out the old drain and scrape away old putty or sealant from the sink opening.
- Apply a rope of plumber's putty or the supplied gasket under the new flange and press it into the opening. Use a silicone sealant instead of putty on stone or composite sinks that can stain.
- From below, add the rubber gasket, friction ring and locknut, then tighten evenly so the flange stays centered.
- Reconnect the tailpiece, run water and check every joint for drips.
Bathroom pop-up drains follow the same idea with a smaller body and a pivot rod linking the stopper to the lift handle.
Keeping Drains Clear Day to Day
Empty strainers and catchers daily in the kitchen and weekly in the bathroom. To clear a bathroom basin, lift out the stopper, pull off trapped hair and wipe the stopper with warm soapy water. A kettle of hot water and a little dish soap once a week helps keep kitchen grease moving. Avoid pouring cooking oil down the drain, and replace worn gaskets when a stopper no longer holds water. For more sink parts and accessories, our full sink hardware selection includes the matching pieces.
Sink Drain FAQ
How do I know what size drain my sink has?
Measure across the opening at the top of the drain. Most US kitchen sinks share one standard large opening, while bathroom sinks use a much smaller one. Compare your measurement with the diameter in the listing before you order.
What is the difference between a drain strainer and a drain stopper?
A strainer lets water through while catching debris. A stopper seals the drain so the sink holds water. Many kitchen parts combine both, letting you strain while rinsing and seal when washing dishes.
Do I need a drain with overflow for my bathroom sink?
If your basin has an overflow hole near the rim, choose a drain with overflow openings so that water can escape. Basins without an overflow hole, such as many vessel sinks, need a drain without one.
What is the best way to clean a kitchen drain?
Empty the basket after each meal, scrub it with dish soap and a brush, and flush the drain with hot water. A baking soda and vinegar rinse can freshen odors. Avoid harsh chemical openers on stainless parts and seals.
Can I use a strainer with a garbage disposal?
Yes. A disposal guard or stopper fits the disposal flange to block utensils and cut splashing. Remove it or switch to an open guard when you run the disposal.