Once you open your deliciously preserved bottles, how do you seal them again whilst you consume the contents? Simply with a Fowler Vacola Snap-on Cap! This Size 3 Snap-on Cap has been designed for easy, airtight storage after bottled preserves have been opened but not consumed in their entirety . The Size 3 Snap-on Cap will transform your Size 14, 20 and 27 preserving bottles into storage jars ‘in a snap’. This means you can enjoy your preserves all year round. These Sanp-on caps are moisture-proof and airtight and will guard against insect infestation . The Snap on Caps are manufacutred in Australia from a BPA FREE Linear Low Density Polyethylene. They are available in this amazing ‘Retro Green’ colour. Please note that Snap-on Caps used with bottles manufactured prior to 1970 may not produce an airtight seal.