Taco's FI Series end suction pumps meet the latest standards for hydraulic performance and dimensional characteristics. FI Series pumps are available in both 125 psi and 250 psi working pressure and 50 hz and 60 hz. The FI Series pumps, along with Taco's CI Series, have the same standard features as the previous CE and FE Series, now discontinued. These include the same dry shaft design, standard gauge tappings on the pump flanges, a built-in drip pan, rear pullout for ease of maintenance, and an easy-to-replace slip-on shaft sleeve to facilitate seal maintenance in the field.Taco, Inc.