B-Line's air filters are a multi-layer cotton gauze element, which are a fully serviceable / rechargeable unit with equipped with an integrated velocity stack that has been specially designed and engineer for optimum, vast, smooth, air flow. 
  Filters comes pre-oiled, ready for use, complete with clamp. 
 
Filter Dimensions:
  Inlet Diameter   3.00"
  Base Diameter  6.00"
  Top Diameter    4.50"
  Element Legnth 6.00"
  Overall Length   7.50"