Check the listing for details. NON-FOAMING ALGAECIDE FOR SPA AND HOT TUBS. Condition: New. Listed at 18.99 USD. Keep your swimming pool free from unsightly algae with this non-foaming algaecide from QUALCO. Specifically designed for use in swimming pool, this solution-based product is perfect for those who want to keep their pool clean and clear of any debris. With its EPA registration number of 3525-114, you can be sure that this product is safe and effective for use in your pool. Ideal for use in swimming pool, this algaecide is perfect for those who want to keep their pool clean and clear of any debris. Its non-foaming formula ensures that it is safe and effective for use in your pool. So, whether you’re looking for a reliable algaecide for your swimming pool or hot tub, this QUALCO product is the perfect solution.