In‑line, under cowl fuel filter. Used on the 30/40 EFI FourStroke outboard, the 4 cylinder (996 cc) 40/50/60 hp. EFI FourStroke outboards, the 75‑115 FourStroke (1.7L, s/n 1B366823 & above), the 150 EFI FourStroke (1B905505 and above) and the 135 thru 300 hp. Verado outboards.