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 Metal Gon & Defender 2 Pack 16oz. $29.99 Add to cart Cover Care & Conditioner 16oz. $19.99 Add to cart Jet Clean 16oz. $14.99 Add to cart Bio Ouster Restoration Plumbing Cleanse $49.95 Add to cart