Air Filter Doppler Venturi 45° 28/35mm PHVA/PHBN red

Doppler Venturi air filter new style

New edition of the proven and successful Venturi air systems from Doppler with a new shape and a clear cover.

Advantages Doppler Box Venturi

The benefit of this filter is the use of the Venturi principle. Venturi means a narrowing of the intake passage which reduces the vacuum needed to pull in air. Intake passages that are too small or too large require high vacuum levels but engines in the 50 to 70cc range do not create much of that. The Doppler Venturi air system draws air through a Venturi insert into a resonance chamber. This chamber calms gas pulses and intake sound which makes the carb run smoother and easier to tune. With the slightly revised intake path the filter is also quieter.

We recommend that you order a carburetor jet set to optimally adjust the carburetor to this pod air filter.

Doppler airbox details

• Connection with reducer: 28mm
• Connection without reducer: 35mm
• Air filter connection: 45° angled
• Color: Red housing / black foam / transparent protective cap

Suitable for carburetors with 28 / 35mm connection

Connection 28mm

• Gurtner 12-16mm (screw flange)
• Mikuni VM 12-16mm
• Original carburetor Honda / Kymco / Daelim / Sym

Connection 35mm

• Dellorto PHBG 15-21mm (with 35mm adapter)

• Dellorto PHVA / PHVB / PHBN 12-17.5mm

• Gurtner 12-16mm (rubber flange)

• Mikuni VM20

• TK 12-16mm

Note: The connection is measured on the carburetor. The rubber mountings of air filters are often slightly smaller, as the rubber expands during installation.