As of today, we manufacture 13 models available in three series: S-Series: Sludge, Mud, Slurries & General Use applications; C-Series: Corrosives & Chemicals; and D-Series: Duplex Pumps for Abrasives & Corrosives. Each line is also available in an API 676 Compliant version. All are built and assembled in the USA. We guarantee shipment of wear parts within 2 working days of receiving an order or the parts are free. This applies for the first 5 years after a LobePro pump is purchased.