Separ 2000 series water separators fuel filters are a simple solution to many different fuel related problems. Five separate stages of filtration ensure 99.9% water separation (Certified TUV Report using SAE J1839) at maximum Low restriction reduces wear on fuel pumps and ensures full RPMs. Backflushable (cleanable) element reduces down time and costly element Inlet / Outlet Connections Single Unit: 1 5/16-12 Straight o-ring SAE Duplex Unit: Shipped with #20 Male JIC Flare (other adapters available) Inlet and Outlet Pipe connection 22mm. Pressure Drop Ordering Specifications Metal bowl- Metal bowl w/ contacts- Metal bowl w/ potential-free probe for water level indication Automatic switchable duplex- We reserve the right to alter the specification without prior notice.