The PF1000 Series is a Bi-directional rotation pump providing constant flow direction regardless of drive shaft rotation. The pump is available with multiple Seal Options: Standard Fluorocarbon, Optional EPR seals for use with some phosphate ester fluids, or Fluorocarbon with high pressure shaft seal. Split-Flow® models can supply multiple, independent flows from one pump! Multiple flows are achieved by combining the output of individual pistons in various combinations (up to one outlet per piston). This pump has 4 pistons.