They are corrosion resistant and non-toxic. The discharge head and built-in check valve constructed of stainless steel for abrasion resistance and quiet operation. Recommended Flow Range: 6 GPM- 28 GPM. Control Box Required and is NOT Included. The item "Goulds 18GS10412CL Submersible Water Well Pump & Motor 1HP 230V 3 Wire 1PH" is in sale since Wednesday, March 17, 2021.This item is in the category "Home & Garden\Home Improvement\Plumbing & Fixtures\Pumps & Water Filtration Systems\Pumps". The seller is "kj-supply09" and is located in Miami, Florida. This item can be shipped to United States.