▪️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.