POLINI 203.0157 air filter 29 x 20 cm to be cut for VESPA 125 150 200 PX PE SPRINT GT GTR TS SPECIAL PRIMAVERA ET3

POLINI ORIGINAL AIR FILTER FOR 50 AND MAXI SCOOTER: CHANGE THE ORIGINAL FILTER, WITH CLEANER AIR COMES THE CAVALRY! Polini Original Air Filter for the most popular 50 cc scooters and maxi scooters. TECHNICAL CHARACTERISTICS High efficiency sponge air filters made of flexible, cross-linked polyester-based polyurethane foam. They are made up of two layers of sponge; a finer one, light blue in colour, with a porosity of 60 PPI, and a more open one, black in colour, with a porosity of 30 PPI. The fine layer filters only the smaller particles, maintaining its characteristics for longer as they do not come into contact with the larger particles that have not passed the pre-filtration carried out by the primary layer. The external surface is distinguished by being wavy, offering a greater entry of air flows but at the same time retaining 50% more coarse dust. Filter efficiency according to European Standards EN779 of grade G3-G4; with weight efficiency greater than 90% and in particular over 50% with particles of 1 micron. Greater capacity to retain dust by impregnating the filter with specific oil for sponge filters. Possibility of regenerating and cleaning the filter by washing and drying. HIGHER PERFORMANCE The "Polini Original Air Filter" are interchangeable with the original ones improving the air flows during the intake phase. Thanks to their characteristic of perfectly filtering and purifying the air, they optimize the air-fuel mixture increasing the values so as to make the engine decidedly high-performance.