Sirona™ Specialties Defend This unique blend of organic polymers is designed to prevent scale formation, aid in the removal of existing scale and help prevent precipitation of dissolved solids. Defend is compatible with all sanitizers Removes scale and helps prevent precipitation of dissolved solids for beautifully clean results Defends against scale formation using a unique blend of organic polymers for soothing, mineral-free spa water Add to your spa water weekly for continued scale protection Sirona™ Specialties maintain restorative spa water and transform every spa into a soothing sanctuary
