A clean smelling restroom plays a major role in the overall patron experience. A poorly maintained or malodorous restroom can cost you business. Health Gards Urinal screens offer an effective method of odor control between cleanings. What's more, they are a practical means of keeping urinal drains free and flowing, by acting as a barrier to prevent debris from entering the plumbing system., Features:, Para products are activated by air, Use in urinals with standing water, Non-staining, Deodorizes continuously for up to 30 days