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Garden hose connector sizing is very important information when buying a new hose or connector, making repairs or replacements. How do I find the right garden hose fitting and how do I measure the size? This article will provide you with detailed steps and practical advice to help you easily measure the size of your garden hose connector.

Measuring the size of a garden hose connector

5 steps to measure the size of a garden hose connector:
Step 1: Preparing the hose and connector
Select the garden hose connector you want to measure and make sure it is clean and free of residual mud or dirt. Cleaning the hose connector will help ensure the accuracy of the measurement.

Step 2: Measure the diameter
First, you need to measure the outer diameter (diameter) of the connector. Typically, the OD of the connector is the most important dimension because it determines whether the connector will fit your hose and other connected equipment.
Use a tape measure or ruler:
Place one end of the tape measure or ruler on one side of the connector, making sure it is perpendicular to the center of the connector.
Slowly work the tape measure or ruler around the outside diameter of the connector until it is completely covered.
Read the measurement on the tape measure or ruler, which is the outside diameter of the connector.
Keep in mind that garden hose connectors usually have two ports, one connected to the hose and the other to the water source or irrigation equipment. When measuring the diameter, you usually measure the end that is connected to the hose.

Step 3: Measure the Thread Size
Another important dimension is the thread size on the connector. This dimension tells you the size of the threads on the connector to ensure that it matches the other connections.
Use a screwdriver or wrench:
Place the open part of the screwdriver or wrench on the threads of the connector.
Calculate the number of threads per inch of the threads, which is usually expressed as TPI (Threads Per Inch).
If you are unsure how to calculate TPI, you can use the following method:
Place a soft cloth or paper towel over the threads.
Use a screwdriver or wrench to gently rotate it until it leaves a full thread count mark on the soft cloth or paper towel.
Use a tape measure or ruler to measure the length of the mark, which is the TPI.

Step 4: Measure Connector Length
The length of the connector is also an important dimension, especially when installing a connector in a limited space. To measure the length of the connector, you can follow the steps below:
Use a tape measure or ruler to measure the distance between the two ports of the connector, this is the connector length.

Step 5: Measure the Connector Type
Finally, it is also important to know the type of connector. Connector types are usually categorized as standard, quick connectors, rotary connectors, etc. Make sure you know which type your connector belongs to to make it easier to buy replacements when needed.

PVC garden hoses
PVC garden hoses

Some extra tips for measuring the size of garden hose connectors

Make sure to measure the inside diameter of the connector, not the outside diameter.
If the connector is difficult to remove, try using a lubricant to help loosen it.
Do not use too much force when removing the connector or you may damage it.
If you are unsure how to measure garden hose connector size, check the manufacturer’s instructions or seek professional help.


Hopefully, the steps and suggestions provided in this article will help you easily measure the size of your garden hose connector to better meet your needs.