Trailer Couplings - Non Braked Light weight to heavy weight couplings to suit 1 7/8 or 50mm towball or duofit Pressed Steel Coupling - 900Kg Recommended maximum tow weight. VIEW OPTIONS Lever Coupling - 2000kg VIEW OPTIONS Duofit Coupling - 2500kg VIEW OPTIONS Duofit Coupling 3500kg VIEW OPTIONS Coupling - 3500kg VIEW OPTIONS TOP