SpaGuard's Water Freshener gives spa owners a simple way to remove any unpleasant odors, while staying active in either chlorine or bromine sanitizing systems. Water Freshener's powerful liquid formula ensures your spa will smell fresh and clean for an extended period by eliminating the odors, not masking them like competing products. This treatment also has the added benefit of not affecting your spas delicate pH level, making application headache-free.