Defender 32oz. $24.99 Add to cart Add to Wishlist Category: Spa Chemicals Description Description A concentrated formula developed to help prevent scale formation, use weekly for continued protection. Related products Natural Chemistry Clean & Perfect $24.95 Add to cart 303 Aerospace Protectant Spray 32oz $32.95 Add to cart Enzyme $21.99 Add to cart FROG @Ease Floating System (for Spas) $56.99 Add to cart