When you consider the grommets rubber sizes, you need to know that there are a lot of different options that you can choose from. The most common sizes that these small units come in vary between 1/16″ and 2”, however, this may vary depending on the exact type of unit that you are interested in. When thinking about the dimensions that you need, there are two main ways that you can approach this. The easiest one is to check the dimensions of the opening that you need to fill, and this should be the diameter, as well as the depth. Depending on the numbers that you got, you can find the right type of grommets rubber sizes. Another thing that you can go with is to start by choosing the preferred unit, and depending on the size, make the opening. However, this can be a more complex process, and it is not usually recommended. 

If you are not sure which dimensions you need, as manufacturers, we can help you find the right size for the small unit. You can reach out to us, and we can offer a variety of different options that you can choose from. You can also get test grommets, see if they fit, and depending on that, purchase more of the units that are used to plug and seal the holes, and protect the openings. Note that you need to consider the inside diameter of the grommet, as well as the outside one, and you should pay attention to the depth dimensions as well. There are units that are manufactured with a longer neck, and that means that they can be inserted in deeper holes. However, you need to fully understand your project before you make the final decision. 

We can offer customized products as well, so if the opening you need to seal is with a specific size, and if you need something that is not already available in our selection, we can help you create unique dimensions and designs that will fit your specific purpose.