Description: Crankcase Breather Filter Inlet ID Metric: 15mm Filter Cap Color: Black Inlet ID Imperial: 0.625in Material: Cotton Gauze Filter Element / Chrome Cap Filter Cap OD Imperial: 2.125in Filter Cap OD Metric: 55mm Filter Height Metric: 66.7mm Filter Base OD Imperial: 2.1875in Filter Base OD Metric: 55.6mm Overall Height Imperial: 2.625in Overall Height Metric: 66.8mm Filter Element Color: Red Filter Height Imperial: 2.625in