Air filter BGM PRO by Marchald for Polini CP carburetor diameter 17.5-19-21-23-24mm, diameter = 46mm, length 30mm

Extra short air filter specially designed for Polini's popular CP carburettor range.
With only 30mm depth perfectly suitable for Vespa Wideframe or Lambretta conversions.
The 55mm version is also a very nice option for Vespa Smallframe.
For BGM specially made form especially for the CP carburetors. The connecting rubber takes up the contour of the carburetor and is thus absolutely safe against slipping.

The indicated intake funnel fits perfectly to the carburetor. Therefore very flow-favorable execution. Together with the effective but very permeable filter material the probably best solution for clean intake air without loss of performance.

Advantages of the Marchald Power Double Layer Air Filter

• Quick and easy to install
• High filter performance and optimized air flow through high-quality Double Layer High Tech Foam
• Extensive sealing edge, absolutely airtight sealing of the adapters, therefore no side air
• humidity resistant - even when completely soaked, the filter does not need to be replaced
• Washable
• Thanks to the extremely flat design, it can be used very well even in places with little space
• Integrated intake funnel for best flow to the carburettor

The indicated length indicates by how much the carburettor/filter assembly is effectively extended.