qwix mix windshield washer fluid concentrate, 1 bottle makes 55 gallons - 100% biodegradable grime & dirt remover, superior commercial grade glass cleaner, single qwix mix ▪️qwix mix biodegradable washer fluid concentrate is environmentally friendly and comes with a quality and style that is unavailable from competing products. ▪️ don’t pay to ship water! washer fluid is at least 70% water and you’re paying to ship that every time you purchase a drum of washer fluid.. just one bottle makes 55 gallons of washer fluid. ▪️ love it or we’ll buy it back from you. no questions asked.