A big juicy slice of watermelon is a sure sign of warm weather! This scent is one that will bring back memories of those warm summer days with the scent of watermelon in the air! Auto Scents Air Freshener Concentrate makes up to two gallons of powerful long lasting fragrance spray. Removes stale or musty odors and improves air quality in vehicles, recreational vehicles, offices and homes. Useful in full-service car washes, detail shops, new car dealerships, used car dealers, RV dealerships and rental car agencies.