Formula 420 Cleaning Plugs

Formula 420 Cleaning Plugs are silicone caps designed to seal openings during the cleaning process. Simply fill your piece with Formula 420 cleaner, plug all openings, and shake. The plugs create a watertight seal so you can clean every surface without spills or leaks. Sold individually. Compatible with all standard glass joint sizes. Use with Formula 420 Cleaners for best results.