BioGuard® Smart Shock – 25 lbs.
Keep your pool water crystal clear, clean, and swim-ready with BioGuard® Smart Shock, the premium shock treatment trusted by pool owners and part of the BioGuard Care System. This powerful, multi-functional formula eliminates contaminants, kills bacteria and algae, clarifies water, and even helps buffer pH levels—all without leaving a cloudy residue.

Smart Shock dissolves quickly and starts working fast, so you can get back to enjoying your pool in just 15 minutes. Suitable for all pool types, it’s the ultimate weekly maintenance solution for brilliant, sparkling water.