Poly-Guard® Crystals, Scale & Rust Preventer

Long-Lasting Scale and Corrosion Control Poly-Guard® Scale & Rust Preventer Crystals give contractors a simple, reliable way to help prevent scale, rust, corrosion, and staining in residential, commercial, and light industrial water systems. The controlled-release crystal format helps maintain consistent protection over time without messy liquid handling or constant adjustment. Protect Systems With Less Maintenance Hard water, iron, and corrosion can create costly service issues for customers — from stained fixtures and plumbing buildup to premature equipment wear. Poly-Guard Crystals help form a protective coating inside the water system, reducing scale buildup and corrosion while helping contractors deliver cleaner, more reliable water system performance. WHY CONTRACTORS RELY ON POLY-GUARD CRYSTALS EXTENDED-RELEASE PROTECTION - Controlled-release crystals help provide steady scale and corrosion control over time with fewer maintenance demands. HELPS PREVENT SCALE AND RUST STAINS - Reduces mineral buildup and iron-related staining that can affect fixtures, plumbing, appliances, and equipment. SUPPORTS SYSTEM-WIDE PROTECTION - Helps form a protective barrier on metal and plastic surfaces to reduce corrosion and copper leaching. CLEAN, CONTROLLED DELIVERY - Cartridge and refill options make installation and maintenance simple, clean, and consistent. VERSATILE APPLICATIONS - Suitable for a wide range of water treatment applications, including residential plumbing, commercial systems, boilers, cooling towers, and geothermal systems. SIMPLIFIES SERVICE PROGRAMS - Helps contractors standardize maintenance, reduce callbacks, and provide customers with dependable long-term protection. Build a More Efficient Service Model Poly-Guard Crystals make it easier to protect water systems without adding complexity to the job. With long-lasting performance and simple cartridge-based maintenance, contractors can deliver reliable scale and corrosion control while creating predictable service opportunities. Specify Poly-Guard Crystals for clean, controlled, long-term protection against scale, rust, and corrosion.