These do not fit on glass bottles. Or, check the water jug’s label, as it may also specify which cap size is needed. Closure Type: Screw Top. Made in the USA. Cap is not designed to be leakproof. Manufacturer: water systems.
Threaded/Screw-On Caps for 3 and 5 Gallon Water Bottle Jugs (3 pk) White
Special Feature: Fits 1, 2, 3, and 5-gallon jugs that have a 53-400 neck finish. These do not fit on glass bottles. Or, check the water jug’s label, as it may also specify which cap size is needed. Made in the USA.
