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 Cover Care & Conditioner 16oz. $19.99 Add to cart Metal Gon & Defender 2 Pack 16oz. $29.99 Add to cart FROG @Ease 3-Pack Replacements (for Spas) $54.99 Add to cart Natural Chemistry Clean & Perfect $24.95 Add to cart