L1 – Horizontal & Vertical Down Flow
L1C – Coalescer / Horizontal or Vertical Down Flow
L1S – Horizontal with sump
L3 – Vertical Down Inlet / Horizontal Outlet
L4 – Horizontal Inlet / Vertical Down Outlet
L6 – Horizontal or Vertical Down flow Inlet /Rotatable side inlet
L6C – Coalescer / Horizontal Inlet / Vertical Up or Down Outlet
T NPT – Horizontal Inlet & Outlet
T Flanged – Horizontal Inlet & Outlet
TS – Horizontal Inlet & Outlet with Sump
TF – Filter
T CS (Cast Iron) – with trap
T CI (Cast Iron) – no trap