Keep your swimming pool crystal clear and swim-ready all season long with Costco’s complete collection of pool supplies. From automated cleaning equipment to essential water treatment chemicals, our selection delivers professional-grade water care at unbeatable wholesale value.

Effortlessly clear leaves, debris, and algae using advanced automatic pool cleaners and smart robotic pool skimmers. Maintain proper water chemistry, sanitation, and clarity with top-rated pool treatment brands, including Clorox Pool & Spa. Our inventory features concentrated chlorine tablets, fast-dissolving chlorinating granules, heavy-duty pool shock, and algaecides engineered to sanitize water, balance pH, and prevent cloudiness. Whether opening your pool for summer or maintaining routine water clarity, Costco offers durable equipment and high-potency chemicals to keep your pool water safe, clean, and refreshing.

Complete your backyard oasis with Costco’s impressive selection of hot tubs & spas and spa accessories. Shop online at Costco.com today to unlock exclusive member savings and fast delivery!