You can measure, or more accurately, identify the size type of a bathroom faucet aerator by comparing its diameter to common US coins. This simple method helps determine the correct replacement size needed for your faucet.
Quick Coin Comparison Method for Aerator Size
Determining the size type of your faucet aerator is essential when you need a replacement or want to change its flow pattern. A straightforward way to do this, as described in the reference, is by using coins to gauge the aerator's approximate size.
Here's how you can use the coin method to identify the aerator size type:
- Remove the existing aerator from your faucet spout. (You might need an aerator key or pliers depending on the faucet type).
- Place the coins over the aerator face-down or next to it to compare their diameters.
Based on the comparison, you can determine the common size type:
- If your aerator is about the size of a quarter, you typically need a "Regular" sized replacement.
- If it's approximately the size of a nickel, you likely have a "Junior" size aerator.
- If your aerator is about the size of a dime, you'll need a "Tom Thumb ®" size aerator.
Aerator Size Guide by Coin
Here's a quick reference table based on the coin comparison method:
| Coin Size | Aerator Size Type | Approximate Diameter (for reference) |
|---|---|---|
| About the size of a Quarter | Regular | ~15/16 inch (approx. 24 mm) |
| About the size of a Nickel | Junior | ~11/16 inch (approx. 18 mm) |
| About the size of a Dime | Tom Thumb ® | ~13/32 inch (approx. 11 mm) |
Note: The diameter values are approximate common sizes corresponding to these types and the coin method provides a quick way to identify the type rather than a precise measurement.
This coin comparison is a practical way for homeowners to quickly identify the common size types of faucet aerators without requiring specialized tools. Once you've identified the size type (Regular, Junior, or Tom Thumb®), you can purchase the correct replacement aerator or kit.
