Clean like a pro with Formula 420. Made in the USA. Easy to follow instructions. Superior Cleaning Power will bring your glass back to new every time. Patented AbrasivAction Technology eliminates the need for soaking or scrubbing. Simply Shake, Rinse & Enjoy! 
Formula 420 offers 3 Cleaners for all your cleaning needs. A1 - Original Cleaner | A2 - All Natural | S1 - Soak-N-Rinse.