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Best Open-End Wrench Size for 4-Faucet Connections

06/01/2025 | Hawkrown

Nowadays, there are numerous specifications and models of faucets on the market, and the 4-point faucet is a commonly used type in home decoration. So, what size of open-end wrench is needed for a 4-point faucet? Let's find out together.

What size open-end wrench is needed for a 4-point faucet?

A 19 mm open-end wrench will suffice. You can use a caliper or ruler to measure the diameter of the inner hole at the threaded end. If the inner diameter is approximately 13 mm, then it's a 4-point faucet. If the inner diameter is around 19 mm, then it's a 6-point faucet.

What are the differences between a 4-point faucet and a 6-point faucet?

1. Different diameters

These two types of pipes not only have different names, but their diameters are also different. The diameter of a 4-point pipe is shorter, at only 20 mm, while the diameter of a 6-point pipe is longer, at 25 mm. Additionally, there are differences in how these two types of pipes are laid out.

2. Different applicable areas

Since these two pipes have different diameters, they are used in different locations. For example, if you have a one kitchen and one bathroom layout and your balcony has a washing machine and a sink, the water supply into the house will be divided into two routes—one for the kitchen and one for the bathroom. In this case, it's recommended to use 6-point pipes for both routes. On the other hand, the water pipe branches in the kitchen can use 4-point pipes. Similarly, a connection from a water heater to the kitchen sink or bathroom basin can also use 4-point pipes.

3. Different residential characteristics

Even within the same community or building, there can be differences between high-rise and low-rise apartments. If your home is located at a higher level, using 6-point pipes is advisable to prevent issues with insufficient water pressure. If it’s a villa or self-built house, then using 4-point pipes is sufficient.

How to distinguish between a 4-point and 6-point faucet?

Usually, you need to measure the inner diameter of the threaded end using a caliper or ruler. Generally speaking, if the inner diameter is about 13 mm, it is a 4-point faucet. Likewise, if the inner diameter is around 19 mm, then it is a 6-point faucet.

In summary, after reading the above introduction, I believe you now have a better understanding of what size open-end wrench is needed for a 4-point faucet. If you would like to know more related information, please continue to follow our website, as we will present more exciting content in the future.

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