Great for 24mm MIkuni Without Adapter And 22 Genuine MIkuni Without Adapter . Completely washable. We recommend Using UNI FOAM FILTER CLEANER 14.5OZ And UNI FOAM FILTER OIL 5.5OZ 15 deg. angle Outer coarse PRE-FILTER can be used dry or oiled depending on conditions Sold individually I.D. Inches: 1 3/4in. Length Inches: 4in.