One pack makes 5 gallons of washer fluid! Eco-friendly packaging with Apple scent or a fresh smell when cleaning your windshield. Simply drop into the reservoir and watch even tough build-up get wiped away. Fast and effective, SCRUBBLADE Wiper Fluid Tablets dissolve in a few minutes and can help you save up to 75% per gallon of wiper fluid purchased.  Combine with SCRUBBLADE wipers for optimal performance. * Works to 28 degrees and can mix in your anti-freeze solution for colder temperatures.