• Allows fast and clean filling of DEF (Diesel Exhaust Fluid), also known as Ad Blue
• Special threaded connector to fit all standard DEF systems
• Special threaded adapter to fit GMC and other Domestic systems
• Elbow adapter to create angle
• Shut-off valve to prevent spillage
• Air-bleed line for fast flow
• Built in screen to prevent contaminants entering system
• Funnel body features wide-mouthed opening & built in handle
• Allows easy, one-man, filling with large (10L) containers, saving time & money