This performance cone shaped filter with cover is about 4 inches deep on the
filter part and about 4 1/2 inches in overall length. The opening where
it fits onto the carburetor is about 38mm in diameter.
This type of filter is easily washed and completely reusable. It is
considered a performance filter because it allows more unrestricted air
to enter the carb which in turn makes the engine more efficient. If
your dirt bike or ATV does not have a filter similar to this one it
might be a good upgrade for you.