Threaded/Screw-On Caps for 3 and 5 Gallon Water Bottles (3 pack) (53mm, White)

The size of the 53mm cap is as follows: the Inner Diameter measures 53mm (2.09 inches), while the Outer Diameter measures 55mm (2.17 inches). These caps are designed for use on models such as the American Maid brand.

It is important to note that these caps are not universal, as there are various cap sizes available for different water bottle brands. Each brand has its own unique neck design, which requires a specific cap size based on the width of the neck and the closure type (screw-on or snap-on).

For instance, the 53mm screw-on cap fits the 1, 2, 3, and 5 gallon American Maid brand bottles, while the 48mm screw-on cap generally fits the 1, 2, 3, and 5 gallon Bluewave, New Wave Enviro, PureAqua, H8O, and LavoHome brand bottles. These caps, however, do not fit on bottles that require Snap-On caps, such as those from Nestle, Primo, Zephyrhills, Crystal Springs, Poland Spring, Arrowhead, Deer Park, Ozarka, Pure Life, Brio, Polar Arctic, and Clack.

Furthermore, these caps are not compatible with glass bottles.

The 53mm (53-400) size screw-on caps with a foam liner are included in a 3-pack and are compatible with American Maid plastic water bottles and water jugs. They are not compatible with water jug brands that require a 48mm sized cap, such as Bluewave, New Wave Enviro, and PureAqua Jugs.

It is important to note that the cap size cannot be determined solely by the jug's brand or gallon size, as some manufacturers have changed their bottle designs over the years. The most reliable method to find the right cap size is to measure the Outer Diameter (OD) of your old caps. The 53mm size caps have an OD of about 2-3/16". Alternatively, you can check the water jug's label, which may specify the required cap size.

In conclusion, it is crucial to measure, measure, and measure again to ensure you find the correct cap size for your water bottle or water jug, as water bottle caps are not universal.

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