The 1500 Series BAT Media Plant from Jet Inc. is a natural, organic, chemical-free system that uses natural resources to reduce wastewater to a clear, odorless liquid in 24 hours, according to the maker. Plants are available in seven sizes (500, 600, 750, 800, 1,000, 1,250 and 1,500 gpd), including two plastic (500 and 800 gpd). Plants have been tested to NSF Standard 40 criteria for Class I NSF Listing. In the Biologically Accelerated Treatment process, millions of microorganisms attach themselves to the media. The aerator supplies the oxygen, which is utilized by the microorganisms to convert waste to colorless, odorless liquid and gas. 800/321-6960; www.jetincorp.com.