Empire 22-047 is a durable Nn-detectable polyethylene warning tape used to protect critical property whether below or above ground. When installed below ground, it is best to be at a shallow depth to ensure product is Nticed before damage to the utility occurs. This product is proudly made in the U.S.A with environmentally safe materials to meet different regulations. It is available in most APWA colors with customization options available upon request.