Sirona Defend Spa Scale & Stain Prevention 32 oz Cleaner Any air leak—no matter how

Any air leak—no matter how small—reduces suction

and constant compression

waterproof silicone adhesive designed for demanding pool

Proper sizing is critical—an incorrect gasket can pinch

Whether used in new installations or as a replacement for worn or leaking valves

Sirona Defend Spa Scale & Stain Prevention 32 oz Cleaner Any air leak—no matter howProtect Spa Surfaces, Plumbing, and Equipment from Scale Buildup Sirona Defend is a professional grade spa scale prevention treatment designed to protect hot tubs and spas from calcium scale, mineral deposits, and surface staining. In warm spa water, dissolved minerals such as calcium and magnesium can quickly fall out of solution, forming scale on heaters, jets, plumbing, and surfaces. Left untreated, this buildup reduces efficiency, restricts water