3X SUPER CONCENTRATE BLUE MARKER: PetraTools Sprayer’s Blue is a highly concentrated water soluble spray colorant for fertilizers, herbicides, and weed killer products. This is a super concentrate that requires 3X’s less marker per gallon compared to other lawn dyes so that you get 3X’s the value for your money. With its extremely visible blue color, you can quickly locate the liquid products applied on your lawn and clogged nozzles or blockages in your sprayer. Saves you time spraying!.Quickly Fades: No need to worry about seeing your yard blue for a long time! Our blue turf mark will fade in 24-48 hours. It naturally disappears with rainfall and exposure to sunlight and doesn’t stain your shoes, clothes, or pets. Compatible with tenacity herbicide, surfactant for herbicide, mesotrione, & all herbicides..The Perfect Spray Pattern Dye: Sprayer’s Blue is perfectly designed for use with sprayers. As a dependable and trusted sprayer manufacturer, PetraTools is developing the lawn solutions you need for the sprayers that get the job done right. 100% Safe to Use, Sprayer’s Blue is formulated with non-irritating ingredients - our spray marker is 100% safe to use around people, pets, and the environment..Saves Chemical Solution and Money: By having a blue indicator, you prevent over-spraying or overlapping liquid applications. Helps you save and maximize liquid products and money. You also avoid skipped areas, plant damage, or possible burns from inaccurate spraying of chemicals. And with a concentrate that is 3x’s stronger, you get even more value for your money..PetraTools Offers Guaranteed Products: PetraTools is a family-owned & operated U.S. business, committed to providing you rock-solid sprayers and solutions for all your growing and lawn needs. From our All-Natural spray liquids to our battery-powered backpack sprayers, we design, sell, and offer the best-in-class US-based customer support for all your spraying needs. Your satisfaction guaranteed or your money back.