faucet aerator

Faucet Aerator Selection, Replacement & Maintenance Guide (Types, Sizes, Uses)

Learn more about the aerator’s numerous beneficial uses and why you typically don’t want a faucet without one. This article is just right for you to know how a faucet aerator works.

To produce a stream of water that is more even and splash-free, you can screw a faucet aerator onto the tip of your faucet. An aerated tap often mixes air and water to generate a smoother stream. Although this amount can fluctuate, a typical faucet aerator typically restricts water flow to 1.8 or 2.2 GPM (gallons per minute).

What is a Faucet Aerator?


faucet aerator


In the late 1940s, faucet aerators acted as an add-on accessory that would lessen splashing and improve the flavor of water by introducing oxygen. Aerators for the faucets are now standard place fixtures on almost all kitchen and bathroom sinks. But you may also buy individual faucet aerators and put them on faucets that don’t have any or have broken ones. The faucet aerator has to be screwed onto the end of the tap because it typically comes complete.

Why do Faucets have Aerators?

It might be possible to remove some grit or scale by removing the aerator and tapping it upside-down. Although an aerator filters silt, this is not its primary function. Instead, a faucet aerator adds tiny bubbles to the water to increase the flow and make it feel softer. It also:

  • Enlarges the water stream
  • Reduces the splashing of water in the basin
  • Water is saved by increasing the efficiency of flow.
  • Can save water in addition if a flow-restrictor aerator is added
  • It can activate soap more quickly and conserve both soap and water.
  • It makes drinking water taste lighter and fresher.

When it comes to external faucets (such as garden hoses), shower and bathtub faucets, and faucets used for the water supply of clothes washers, an aerator is unnecessary and may even be ineffective. You don’t require the aerator’s lighter water stream in certain circumstances.

How do Aerators Work?

The aerator on taps functions like a sieve, dividing a single stream of water into numerous little streams and adding air to the water flow. Additionally, since there is less room for the water to move through, less water is used because of the lower water flow, also referred to as flow regulators or tap aerators. A small addition, the aerator can either be bolted onto the tap’s end or inserted into the existing spout. Because they combine water and air, these water-saving devices will regulate water flow through the tap without reducing water pressure.

Are all Faucet Aerators Universal?

Not all faucet aerators are universal. Aerators come in essentially two different varieties, male and female. Depending on its threads, an aerator can either be male or female. While a female aerator fits a male faucet, a male faucet requires a female aerator. A dual aerator can also suit either style of faucet because it includes threads on the inside and outside. Aerators are also available in two sizes: junior (3/4″ F, 13/16″ M) and regular (55/64″ F, 15/16″ M).

Stationary Aerator

Stationary faucet aerator

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An aerator that is stationary is merely fastened to the faucet’s end and does not rotate. One of the most common and fundamental styles of residential aerators is this one. The water flow is pleasant to the touch and does not splash.

Swivel Aerator

Swivel faucet aerator

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You can enable almost any faucet to spray the farthest regions of your sink with a swivel spray aerator. These swivel spray aerators are the ideal option for your house because they are practical, simple to install and come in a number of styles and finishes.

Diverter Aerator

Diverter faucet aerator

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You can “divert” (or redirect) water from your bathtub faucet to your showerhead and back using a faucet diverter valve, a plumbing device. You may also use it to swap back and forth between the sensor water taps, the kitchen faucet, and the faucet sprayer.

Faucet Aerator Sizes: Step-by-step Selection Guide


Aerator Sizes

Image Source: PlumbingSupply.com

An automatic kitchen faucet aerator typically comes in two sizes: “Regular,” which is usually 15/16″ male threaded or 55/64″ female threaded, and “Junior,” which is typically 13/16″ male threaded or 3/4″ female threaded. Smaller “Tom Thumb” metric-size aerators, either M18x1 male threaded or M16x1 female threaded, are used with some faucets.

Figure out which aerator housing size you need: standard or cache aerators.


Faucet Aerator for Cache Aerators

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Your faucet requires a standard-size aerator if it is about the size of a nickel. Your faucet will use a junior-size aerator if it is about the size of a dime.

#1 Regular Aerator

If your faucet is approximately the size of a nickel, it needs a regular-size aerator.

#2 Junior Aerator

Your faucet will use a junior-size aerator if it is about the size of a dime.

#3 Tom Thumb Aerator

The thumb of a tom is the same size as a cent.

#4 Cache Aerator

The Hidden or Recessed Aerator is another name for Cache Aerators. The Cache Aerator is vandal-proof by design because it threads directly into the faucet spout. These aerators can also be recessed or buried, and installing or removing them requires a unique aerator key.

How to measure faucet thread size?

The most straightforward approach to determining the diameter of the thread on your mixer tap or faucet is to remove the aerator. First, take out the washer and insert it from the aerator’s interior. If a nickel is placed on top of the aerator, it will be a standard size, and the circle will be approximately identical. Use a dime if the aerator isn’t the standard size. The dime can be placed on top of a tom thumb-sized aerator and fit inside a junior-size aerator. Following these instructions and using the conversion table below will determine the nominal pipe size you require for the most straightforward task possible.

  • Determine faucet aerator housing size
  • Determine if you need a male or female
  • Your pipe or pipe fitting’s outside diameter (OD) should be measured.
  • Find the nominal diameter using the chart on this page.
  • Choose stream type and flow rate.

Choose the Right Aerator Size: Male vs Female


Male and Female Aerator

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Male Aerator

Your kitchen faucet is male threaded if it has external threads, in which case you must purchase a FEMALE threaded aerator to go over it. 15/16″-27 for standard-sized males.

Female Aerator

Your faucet is female threaded if there are threads inside, in which case you require a MALE threaded aerator. The thread size is 55/64″-27 for standard-sized females.

Choose the Steam Type

Aerated Stream

Aerated Stream

Image Source: PlumbingSupply.com

Air is added to the water stream by aerators to create a bigger, whiter, softer-touch stream that doesn’t splash. For home faucet applications, aerators are typically the preferred option. Aerators that save water are available at low flow rates to offer the most significant savings.

Laminar Stream

Laminar Stream

Image Source: PlumbingSupply.com

A non-aerated water stream is produced using laminar stream straighteners. Laminar spout-end devices offer a clear, non-splashing stream that is perfect for high-flow rate kitchen faucet applications or healthcare institutions.

Spray Steam

Spray Stream

Image Source: PlumbingSupply.com

Typically seen in public toilets, spray aerators offer a small shower pattern to ensure complete, splash-free coverage during hand washing.

Measure Flow Rate

Acquire a pressure gauge with a hose bib—adaptor to monitor pressure. Turn on the water supply after the indicator has been bolted, then check the PSI. Like the pump, you can use a hose to attach a pressure gauge, switch it on, and read the pressure from a source of city water or recycled water. It will be similar to measuring flow from a pump from a municipal or recycled water source. You can always call your local water or public works authority to inquire about the available flow and pressure if you have any questions.

How Much Water Does a Faucet Aerator Save?

The water flow can be reduced by less than half to 6 liters per minute with an aerator. Aerators may be placed on 95% of faucets, and according to estimations, their use can result in monthly water savings of up to 1,274 liters.

Bathroom Aerator

Bathroom Aerator

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Aerators screw onto faucets in the kitchen and bathroom. Bathroom faucet brands ratings are a way to know the best faucet aerator. The screens’ holes allow air to enter the water as it flows from the faucet. The screens at the end of a faucet are called faucet aerators. The gadgets regulate the stream and reduce water flow from a tap.

Kitchen Faucet Aerator

Kitchen Aerator

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An automatic kitchen faucet is wave sensor activated, temperature control, an integrated design with two independent waterways, and infrared spout sensor activation. Some of its characteristics include;

  • It intelligently recognizes the infrared sensor and manually activates its chrome-plated finish.
  • It cuts back on the water flow from the faucet and shapes the water’s flow.
  • It is preserving or enhancing water pressure and avoiding splashing when water hits anything, including your hands, the sink, a drink, or anything else.

Water Saving Faucets

Water flow rates can be reduced by up to 0.5 gallons per minute or from 2.2 to 1.5 when aerators are used to conserve water. Due to modern technology like the sensor water taps produce a constant stream of water and a hardly perceptible shift in water pressure by mixing air with water.

How to Remove or Replace a Faucet Aerator?

One of the most accessible household solutions is cleaning an aerator, but two things must be kept in mind: Be cautious not to harm the aerator as you remove it. Before disassembling the aerator, take a picture of the parts’ arrangement; they must be put back in the same order. You’ll need these things:


  • Channel-lock pliers
  • Small screwdriver
  • Sewing needle
  • Toothbrush


  • Masking tape
  • Toothpick or paper clip
  • Vinegar


  • Remove the Aerator
  • Check for Deposits and Debris
  • Disassemble and Clean the Parts
  • Soak Parts in Vinegar
  • Rinse and Reassemble the Aerator
  • Reattach the Aerator

How to Clean a Faucet Aerator?

The aerator can be unscrewed using pliers and a tool. Before unscrewing the aerator, you can wrap electrical tape around the pliers if you’re concerned about scratching the metal. Follow the step-by-step process below.

  • By closing the valves under the sink, you can stop the water flow.
  • To prevent losing the little parts, block the drain.
  • The aerator faucet should be able to be unscrewed with the aid of pliers or a wrench.
  • To remove any dirt, use water and a toothbrush or other unique cleaning tool, making sure the screen holes are left free.
  • To make it simpler to put the aerator back together after you’re done, remove the parts carefully and pay attention to the sequence in which you removed them.
  • Soak the aerator parts in white vinegar for the entire night to get rid of calcium and limescale deposits.
  • Clean, then put the aerator pieces back together.
  • Analyze the water flow.


Using the bathroom faucet brands ratings, you can know the best faucet aerator for your house. You can also save money and your water consumption bill by using the best faucet aerator from the best brand. Visit them now.

faucet aerator

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