The best looking filter cups available, with a grooved O.D. for better clamping power! Stop your air filter from slipping off! These air filter cups fit the Walbro WB3A carburator and are WKA and IKF legal. There is an o-ring installed on the back, so there is no gasket needed. (2) 6mm screws are included. Colors available are: Red, Blue, Purple, and Natural Aluminum

Attention Motor Builders and Parts Dealers! These items are eligible for our quantity discounts and can have your company's initials engraved on the inside of the cup. These filter cups are a great way to grab attention with your motors.


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