4-inch centerset faucets are made for washbasins with three holes and have handles that are 4 inches apart. They combine a spout and handles on a single base unit. Some centerset faucets may have two handles mounted onto a 6-inch plate.
Centerset Faucets
These faucets are mounted on 3-hole sinks with a 4-inch spread.
First, it's important to know that three-hole faucets are those that have three separate parts that are visible from the top of the counter – the faucet and two separate handles or levers. These are installed in three holes in the countertop. This type of faucet is also known as a widespread faucet.
Yes, you can install a one-hole faucet in a three-hole sink, but you will need to use a few additional components to cover the extra holes. Here's how you can do it: Choose a Cover Plate: Many one-hole faucets come with a cover plate (also known as an escutcheon) that can cover the extra holes.
Two-hole kitchen faucets may be a bridge-style design or a handle/faucet combination with room for a sprayer. Three-hole kitchen faucets are traditional faucets with hot and cold taps and a fourth hole for the sprayer. Kitchen sink faucets usually come equipped with the sprayer feature.
The air gap faucet itself requires, therefore, three tubes rather than one — one is for the upward drain water, one is for the downward drain water, and a third is for the unit's product water, which you drink.
Widespread faucets feature separate hot and cold handles that are independent from the spout and can be mounted on the countertop or on sinks. It can be mounted on sinks with three holes that fit 8 inches to 16 inches from one side to the other.
To find your faucet type, simply measure the distance between the center of the faucet handles. A distance of 4 inches between handles indicates the faucet is a centerset type. If the distance between handles is 8 to 16 inches, that falls into the widespread faucet category.
So, unless you need a two-handle system and you only have a one-handle system, you're most likely fine with the valve you already have. To replace a shower faucet without changing the valve, ensure that your new faucet system matches your old one.
Use the Specification Sheet, or measure the product for the hole configuration. The product Technical Specification sheet will have the recommended hole size and spacing required for installation. The specification sheet is on the website under the product's image, in the Documents and Specs tab.
The four-inch measurement for a centerset faucet refers to the center-to-center distance between the two furthest mounting holes. Centerset faucets have three mounting holes.
Sinks generally come in one of three configurations: 6”, 8”, and 6”-16”. The faucet will cover the holes in most of these configuration. You will need to measure the width between the outer holes or estimate it by measuring the width of the deck plate. A 3-hole sink is very common in bathrooms.
In many cases you can simply examine your faucet and count the holes. If you have separate handles for hot and cold, you have three holes in the sink. Measure the distance between the handles. Hold the the tape measure above the faucet if it's in the way.
A gooseneck faucet releases water much higher than a conventional faucet, so you do not have to bend as much or put strain on your back. Now you can comfortably wash your hands and complete daily washing tasks with ease. Although a gooseneck faucet is positioned high above the sink, you can still clean with accuracy.
Centerset faucets are designed to be compact and save space, so they're generally only available in four-inch spacing. This is the amount of space between the center to center two furthest holes. If a tape measure reveals a four-inch spacing, look for centerset faucets with the same spacing.
Three types of bathroom faucets are likely to have a single handle: the ball, disc and single handle cartridge types. You can tell if you have a ball type if the handle rotates, wiggles and coasts in any direction like a joystick on what looks like a ball set into the top of the faucet.
The EQ Connect App provides diagnostics and allows you to make adjustments to the faucet's settings with the touch of a finger. Quickly scans & identifies faucets in the room. Fast diagnostics, reports, and service mode setting.
Three holes is for separate hot and cold handles and spout head. One hole is for single faucet that had temp control on it.
You can install a one-hole faucet in a three- or four-hole sink by adding a deck plate but not vice versa.
If there is a three-hole arrangement, determine the spacing by measuring from the center of the handle. Standard spacing is generally four or eight inches. If you prefer a single-hole faucet and the sink has three holes, don't worry. A cover plate can hide the other holes, and most faucets come with one.
Disadvantages of Non-Air Gap RO Faucets:
Without the air gap, there is a higher risk of cross-contamination if there is a problem with the plumbing system. Not Code Compliant in Some Areas: Depending on where you live, local plumbing codes may require the use of an air gap faucet with an RO system.
The metal thing in question is a small, cylindrical metal tube that sits next to the faucet on your kitchen sink. Reddit user @dominostracker wondered the exact same thing, and according to a few wonderful human beings who took the time to answer, that thing is an air gap.