This is the filter for use on velocity stacks with a large outside dia. of about 3 1/2". The screen insidw keeps the filter from collapsing, as shown in the picture. We have these made special for our velocity stacks. they can be use on any velocity stack 3" to 4". They need light oiling before using. Sold each.

Air Filter - Large

SKU: STF-200
$23.95Price