FLT YELLOW/GREEN Liquid - Bright Dyes Tracer Dye for water or wastewater leak detectionDescription Color: FLT Yellow Green FLT Yellow Green vibrant color offers greater contrast in murky brown water Its fluorescent properties offers greater apparent contrast than non fluorescent blue May be used for visual, ultraviolet* and fluorometric* inspections Disappears in sunlight more rapidly than FWT Red dye and non fluorescent blue 16oz (Pint) 1 Gallon Containers (special order) Type: Liquid Dye Best for moderate to large volumes of water,