Description: Crankcase Breather Filter Filter Element Color: Red Inlet ID Metric: 12mm Filter Base OD Metric: 55.6mm Filter Cap OD Metric: 55mm Filter Height Metric: 66.7mm Filter Base OD Imperial: 2.1875in Inlet ID Imperial: 0.5in Filter Cap Color: Black Material: Cotton Gauze Filter Element / Chrome Cap Overall Height Imperial: 2.625in Overall Height Metric: 66.8mm Filter Cap OD Imperial: 2.125in Filter Height Imperial: 2.625in