Toilet Bowl Cleaner Refill Cartridge, #8100, 2-pk.

Flush N’ Sparkle puts a cleaning solution directly into the overflow tube of the flush valve, so no chemicals ever touch the flapper or fill valve. This prevents the damage that a drop-in tablet normally inflicts while keeping the bowl clean and sparkling. The 8100 kit contains a blue cleaning solution that lasts up to three months. Replacing the cleaning solution cartridge takes less than a minute. Relax and let the toilet clean itself with Fluidmasters Flush 'n Sparkle Cleaning System. What's Included: Cleaning system mount, cartridge, cleaning solution, tube and clipEliminate hassle with this self-cleaning toilet systemEasy installation in just minutesDispenser releases metered amount of cleanser directly into the bowlNo residue or chemicals in tank to damage parts or hamper operationScrub-free, hands-free cleaningCleaning cartridge lasts up to 3 monthsCleans with every flush