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 Metal Gon 16oz $14.99 Add to cart Filter Clean $14.99 – $29.99 Select options Spa Down / pH Down 2.5 lbs $14.99 Add to cart