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Yes, you can install a single-hole faucet in a three-hole kitchen sink. You just need to cover the extra holes. Many people use a deck plate or hole covers for this. Brands like Aquacubic offer modern solutions and accessories to help you get a clean look. You can choose the right kitchen faucet and make your sink look fresh and updated.
You can install a single-hole faucet in a three-hole sink by covering the extra holes with a deck plate or hole covers.
Choosing the right faucet type depends on your sink's hole count. A single-hole faucet is modern and easy to use, while a three-hole faucet offers more control.
Always check your sink's hole size before buying a deck plate or faucet to ensure a proper fit.
Follow a step-by-step guide to safely replace your faucet, including turning off water and using the right tools.
If you encounter leaks after installation, check connections and tighten them. Use plumber's putty or silicone sealant to prevent leaks.

When you shop for a kitchen faucet, you will see different types. The most common are single-hole and three-hole faucet models. A single-hole faucet needs only one hole in your sink. It usually has one handle that controls both water flow and temperature. You can install it quickly. Many people like it for its modern look and easy use.
A three-hole faucet uses three holes in your sink. It often has two handles—one for hot water and one for cold. Some models add a sprayer or soap dispenser. This type gives a classic style and more control over water temperature. It takes more time to install because you must line up all the parts.
Aquacubic makes both single-hole and three-hole faucet options. You can find styles for any kitchen. Here is a quick look at the main types of kitchen faucets and their best sink setups:
Faucet Type | Recommended Sink Setup |
|---|---|
Single-Handle | Standard, smaller sinks with a single hole |
Double-Handle | Larger sinks with two or three holes |
Pull-Down | Deep and wide sinks in spacious kitchens |
The number of holes in your sink decides which kitchen faucet you can use. If you have a single-hole sink, you can only use a single-hole faucet. If your sink has three holes, you get more choices. You can use a three-hole faucet or cover the extra holes to fit a single-hole faucet.
Here are some reasons why the hole count matters:
Faucets with one handle and spout need only one hole.
Three-hole faucets need three holes for the spout and handles.
Extra holes let you add features like a sprayer or soap dispenser.
You can use a deck plate to cover unused holes if you want a single-hole faucet in a three-hole sink.
Tip: Always check your sink before you buy a new faucet. It helps you pick the right model and avoid extra work.
Aquacubic offers deck plates and accessories to help you get the look you want. You can match your kitchen style and make sure everything fits.

Changing a 3 hole faucet to a single-hole faucet is easier than you might think. You just need to cover the extra holes in your sink. Let's look at two popular ways to do this.
A deck plate, also called an escutcheon, is a metal plate that sits under your new single-hole faucet. It covers the two unused holes from your old three-hole faucet. Most deck plates for kitchen sinks measure about 10 inches long and 2.36 inches wide. This size fits most sinks and gives a clean look.
Many single-hole faucets come with a deck plate included. Aquacubic offers several models that include this handy accessory. You can install the deck plate when you put in your new faucet. It hides the extra holes and keeps water from leaking under the sink. The process is simple and quick.
Tip: Always check the size of your sink holes before buying a deck plate. This helps you get the right fit.
Here's a quick list of steps for using a deck plate:
Remove the old three-hole faucet.
Place the deck plate over the holes.
Install the new single-hole faucet through the center hole.
Tighten everything and check for leaks.
Hole covers are small metal or plastic discs. You screw them into the extra holes to block them. They come in different colors and finishes, so you can match your sink. This option works well if you want a simple fix.
You can also use the extra holes for accessories. Some people add a soap dispenser, filtered water faucet, or sprayer. Aquacubic has a range of accessories that fit these needs.
Here's a table to help you compare deck plates and hole covers:
Feature | Deck Plate | Hole Cover |
|---|---|---|
Covers two holes | Yes | No (one per hole) |
Easy to install | Yes | Yes |
Matches faucet finish | Often | Yes |
Adds accessories | No | Yes (if you choose) |
Both options help you change a 3 hole faucet to a single-hole faucet. You can pick the one that fits your style and needs. When installing a faucet, always make sure to disconnect the faucet supply line first. This keeps things safe and dry. After removing the old faucet, installing the new faucet is much easier.
Ready to change a 3 hole faucet to a single-hole faucet? You can do it yourself by following these detailed steps for replacing your old three-hole faucet. Let's walk through the process together.
Before you start, gather everything you need. Having the right tools makes the job easier and safer.
Tool/Material | Purpose |
|---|---|
Adjustable wrench | Loosen and tighten nuts |
Basin wrench | Reach tight spots under the sink |
Plumber's putty/silicone caulk | Seal the faucet base to prevent leaks |
Screwdriver | Remove screws from old faucet |
Bucket or towel | Catch water drips |
Deck plate or hole covers | Cover extra holes in the sink |
New single-hole faucet | Your new kitchen faucet |
New supply lines | Replace old lines for safety |
Cleaning supplies | Wipe away grime and old sealant |
Tip: Always check the box for your new kitchen faucet. Many kits include a deck plate, supply lines, and mounting hardware.
Let's get that old three-hole faucet out of the way. Follow these steps:
Turn off the water under the sink. Twist the shut-off valves until they stop. If you have a garbage disposal, unplug it or turn off the power at the breaker.
Place a bucket or towel under the supply lines. This catches any water left in the pipes.
Take a picture of the setup. It helps you remember where everything goes.
Disconnect the water supply lines using your wrench. Hold the shut-off valve steady while you loosen the nuts.
Use a basin wrench to loosen the mounting nuts under the sink. These nuts hold the faucet in place.
If the nuts feel stuck, spray a little WD40 or use a hook wrench. Sometimes, you may need a mini hacksaw for stubborn parts.
Lift the faucet body out from above the sink.
Clean the sink surface. Remove old putty, grime, and debris.
Note: Some older sinks may not have shut-off valves. If so, consider installing them during your faucet replacement for extra safety.
Now you're ready to install your new single-hole faucet. Here's how:
Place the deck plate or hole covers over the extra holes in your sink. Make sure they fit snugly.
Feed the faucet lines through the center hole.
Apply plumber's putty or silicone caulk around the base of the faucet. This step helps prevent leaks.
Set the faucet in place. Press down gently so the sealant spreads evenly.
Go under the sink. Attach the mounting hardware to secure the faucet. Tighten the nuts by hand, then finish with a wrench.
Connect the new supply lines to the faucet and shut-off valves. Replace old lines if they look worn.
If your faucet has a pull-down sprayer, set it up now by following the instructions in the box.
Tip: Use a smooth, even bead of silicone sealant around all joints. This keeps water from sneaking under the faucet.
You're almost done! Let's make sure everything works perfectly.
Turn on the water slowly. Watch for drips under the sink and around the faucet base.
If you see water, check the connections. Tighten any loose nuts.
Inspect the pop-up rod area and drain pipe for leaks. Patch or replace parts if needed.
Wipe away extra putty or caulk from the sink.
Clean the sink and faucet. Remove fingerprints and debris.
Test the faucet handle and sprayer. Make sure water flows smoothly.
Dispose of old parts and packaging responsibly.
If you have questions during your faucet replacement, Aquacubic's customer support team is ready to help. They can guide you through any tricky steps.
You did it! You just managed to change a 3 hole faucet to a single-hole faucet. Your kitchen faucet now looks modern and works like new. If you want to add a soap dispenser or water filter, use one of the extra holes for a handy upgrade.
When you switch from a three-hole faucet to a single-hole faucet, you might run into a few problems. Let's look at the most common issues and how you can fix them.
Leaks can happen if you don't seal the faucet base or connections well. You want to keep water out of places it shouldn't go. Here's a table showing best practices for sealing and leak prevention:
Step | Description |
|---|---|
1 | Clean the area using a non-abrasive cleaner. |
2 | Inspect for cracks or chips in the sink. |
3 | Check plumbing connections for leaks or wear. |
4 | Confirm the surface is level. |
5 | Tighten mounting nuts and check stability. |
6 | Reconnect water supply and test for leaks. |
You can wrap plumber's tape around threads two or three times. Apply a thin bead of plumber's putty or silicone sealant around the faucet base. Wipe away extra sealant for a neat finish. If you see drips, tighten the connections or add more sealant.
Tip: Always test your faucet after installation. It helps you catch leaks early.
Plumbing can be tricky when you change faucet types. New faucets often come with braided lines that fit most homes. You need to check if your shut-off valves match the new faucet lines. Some older valves may leak when you open them. It's smart to replace old valves before you install the faucet.
New faucets use standard fittings for hot and cold water.
Non-standard equipment from other countries may not fit.
Old plumbing parts can cause leaks or low water pressure.
If you notice low water pressure, check the aerator or supply line. Sometimes, cleaning the aerator or replacing the line fixes the problem.
You want your sink to look good after you replace the three-hole faucet. Sometimes, you see visible holes if you don't cover them well. Use a deck plate or hole covers to hide extra holes. Pick covers that match your faucet finish for a clean look.
Here's a quick table of common issues and fixes:
Issue | Description |
|---|---|
Leaks | Caused by loose connections or damaged parts. |
Low Water Pressure | Often fixed by cleaning the aerator or checking supply lines. |
Loose Faucet Handle | Tighten screws or replace worn O-rings. |
If you feel unsure about plumbing or sealing, you can call a professional. They help you avoid mistakes and keep your faucet working well.
You can change from a three-hole faucet to a single-hole faucet. Use a deck plate or hole covers to do this. This upgrade gives you many good things:
It is easy to install and saves you time.
The design saves space and works for small sinks.
The style looks nice in modern kitchens.
There are fewer parts, so cleaning is easier.
Fewer places can leak, so it lasts longer.
Aquacubic has good faucet choices and accessories for every style. If you are not sure about changing your faucet, think about your skills. You can also ask a professional for help. Look at Aquacubic's products to find what fits your kitchen best.
Yes, you can. You just need a deck plate or hole covers. These accessories hide the extra holes. Most sinks and faucets work together if you check the size first.
You need a few basic tools:
Adjustable wrench
Basin wrench
Screwdriver
Plumber's putty or silicone
Bucket or towel
A table helps you see it clearly:
Tool | Use |
|---|---|
Wrench | Tighten/loosen |
Screwdriver | Remove screws |
Putty/Silicone | Seal faucet |
Most deck plates come in finishes like chrome, brushed nickel, or matte black. You can find one that matches your faucet. Brands like Aquacubic offer matching sets for a seamless look.
Yes! You can add a soap dispenser, filtered water tap, or sprayer. It gives your sink more features. You just pick the accessory you want and install it in the extra hole.
Check all connections. Tighten nuts and fittings. Add more plumber's putty or silicone if needed. If leaks continue, you can call Aquacubic's support or a local plumber for help.
