Defender 32oz. View cart “Spa Up / pH Up 2 lbs” has been added to your cart. $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 Mineral Purifier Spa Frog $41.99 Add to cart Bio Ouster Portable Hot Tub Watercare Kit $99.95 Add to cart Enzyme $21.99 Add to cart Cover Care & Conditioner 16oz. $19.99 Add to cart