UNI High Performance Foam Air Filter Element NU-3403 Get superior filtration through a unique open cell foam Allows more clean air to your engine for peak performance, combined with improved dirt holding capability Washable and re-usable Fits oval air cleaners fitted to 1966-E73 and 1983-85 XLS models or 1967-E75 FL &amp; FX models Replaces H-D OEM 29036-72