Bosch 044 Fuel Pump M12x1.5 x 8mm Inlet Hose Fitting Adaptor - Black.
 
Bosch 044 Inlet Fitting :
1x Inlet fitting M12 x 1.5mm x 8mm (Black Anodised Aluminium)
1x Inlet Seal
 
Fits Fuel Pump:
Bosch 0580254044
This will also fit any fuel pump with an M12 (12mm) x 1.5mm inlet.