- Shape: Round   - Height: 1.875 in (48 mm)   - Inner Wire: No   - Inside Diameter: 4.688 in (119 mm)   - Outside Diameter: 6.063 in (154 mm)   - Replacement for OEM 29036-41TA.   K&N is the world-wide standard in high-end quality performance air filtering systems. They are washable and can be used as stock replacement. The filter elements are designed with a ribbed surface that will give you up to 5 times more filter area than a regular replacement filter, dramatically increasing airflow. The K&N filter elements have a steel body with cotton between the screens. K&N filters decrease service intervals, are better flame resistant and will last much longer than comparable foam or paper type filters.