Spa Perfect Is a natural enzyme product that biodegrades organic contaminants to reduce maintenance, prevent scum lines, eliminate chemical odors and produce clear, soft-feeling water. Natural enzyme product; biodegrades organic contaminants to reduce maintenance, prevent scum lines, eliminate chemical odors and produce clear water Helps prevent that ugly water-line ring and tedious soaking and scrubbing of cartridge filters 100 percent biodegradable 5 Ounce per 500 gallons weekl…