With over 38 years of experience, Double Life 250 Series Centrifugal Pumps utilize top of the line industry technology to create one of the best, most affordable pumps in the market. Additional benefits to purchasing a Double Life pump are tungsten/viton mechanical seals. Fluid ends are made with higher grades of cast iron, producing a greater hardness than others in the industry. Every pump is assembled in the USA. www.doublelifecorp.com