Spectrum Hydro
Submersible pumps designed specifically for hydroponic systems. Powerful mag drive construction Indoor use Oil free and environmentally safe BPA free—safe for aquaponic use One year warranty 6' power cord Has 5/16" fitting for 5/16" ID tubing. 1/4" ID tubing will fit inside fitting. NOTE: Models 40 GPH-160 GPH contain a steel shaft and are not suitable for saltwater applications. Larger pumps (250 GPH-1000 GPH) have a ceramic shaft, and these are suitable for saltwater operation.