What Size Water Meter Key Do I Need?

Use our sizing chart to determine what size water meter key you need for your application.

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Determining the right size water meter key

If you’ve ever wondered what size water meter key you need, wonder no more! This simply guide will help you determine the right size water meter key for your needs. All you need is a tape measure and something to mark the measurements with.

Check your local water regulations

Before you purchase a water meter key, you should check with your local water provider to see what size is required. Each municipality has different regulations, so it’s important to be sure you’re in compliance.

If you’re not sure who your local water provider is, you can check the website of the Environmental Protection Agency (EPA). The EPA keeps a list of all public water systems in the United States.

Once you know who your water provider is, give them a call and ask what size meter key is required. They should be able to give you this information readily.

If you’re still not sure, or if your water provider can’t help you, there are a few other options. You can try an online search for “water meter key [your municipality].” This should bring up some results that can help you determine the right size.

You can also try visiting a local hardware store and asking an employee for assistance. They may not be able to give you an exact answer, but they may be able to point you in the right direction.

Finally, if all else fails, you can always purchase a multi-size key that will fit a variety of different meters. This isn’t ideal, but it’s better than nothing.

Find out the size of your water meter

It’s important to know the size of your water meter in order to purchase the right size water meter key. The size of your water meter will be determined by the diameter of the meter register, which is the part of the meter that displays your water usage. The most common sizes for residential meters are 5/8”, 3/4”, 1”, and 1 1/2”. Commercial meters can be larger, up to 2”.

To measure the diameter of your meter register, use a tape measure or ruler to find the distance across the face of the register. The measurement will be in inches. Once you have this measurement, you can use our chart to determine the size key you need:

5/8″ Meter – 1″ Key
3/4″ Meter – 1 1/2″ Key
1″ Meter – 2″ Key
1 1/2″ Meter – 3″ Key

Now that you know what size water meter key you need, you can purchase one at a hardware store or online. Be sure to check that it is compatible with your particular type of meter before making a purchase.

How to measure a water meter key

You’ll need to measure the diameter of your water meter’s screw before you can purchase the correct size key. The most common sizes for residential meters are 5/8″, 3/4″ and 1″. Commercial meters can be any size from 1″ and up. Let’s get started.

Use a tape measure

To measure a water meter key, you will need a tape measure. Measure the length of the meter key from the tip to the base. The base is the widest part of the key. The width of the meter key is not as important as the length.

Use a ruler

To find out what size water meter key you need, first locate your water meter. Once you have found it, look for the current key size. It will be cast into the body of the meter or printed on a nameplate affixed to the meter. If there is no current key size indicated, measuring the nut width is the next best method.

To measure the nut width, use a ruler to measure the distance across the top of the nut, from one flat side to the other. This measurement will correspond to one of our standard key sizes, as follows:
1/2″ = 5/8″
3/4″ = 1″
1″ = 1-1/4″
1-1/2″ = 1-3/4″
2″ = 2-1/4″

How to order the right size water meter key

Before you order a water meter key, you need to know the size of your water meter. The size of your water meter will determine the size of the water meter key you need to order. You can find the size of your water meter by looking at the manufacturer’s nameplate on the meter.

Online

When ordering a water meter key online, it is important to select the correct size for your needs. There are three general sizes of water meter keys: small, medium, and large.

The size of the water meter key will be determined by the size of the meter that it is being used on. Smaller meters will require a smaller key, while larger meters will require a larger key.

It is also important to consider the length of the water meter key when ordering online. Water meter keys come in different lengths, and the correct length will be determined by the depth of the water meter that it is being used on. Shorter keys are meant for shallower meters, while longer keys are meant for deeper meters.

When ordering a water meter key online, be sure to select the correct size and length for your needs in order to ensure that the key will fit properly and work correctly.

In-person

If you’re looking for a water meter key and you’re unsure of what size to get, the first thing you need to do is find your local water provider. Once you have the contact information for your local water provider, give them a call and explain that you’re looking for a water meter key and you’re not sure what size to get. The customer service representative should be able to help you determine what size water meter key you need.

If you’re still not sure what size to get, another option is to go to your local hardware store and ask for help. Most hardware stores will have someone on staff who can help you figure out what size water meter key you need.