Clarus Pool & Spa is an online swimming pool supply store for pool and spa owners who want crystal-clear water. Shop pool filter systems, pool pumps, sanitization, lighting, parts, and pool maintenance supplies. Replacement filter cartridges are compatible with Hayward, Pentair, Jandy, Waterway, and more. Many Clarus filtration products meet NSF/ANSI 50 standards for material safety, durability, and performance. From Florida and California to Texas, Arizona, and New York, orders ship across the contiguous United States, with free standard shipping for Clarus Rewards members. Every purchase is backed by the Clarus Warranty and lifetime customer support, so owners can filter better and worry less.