Outerwears Air Filter Pre-Filter - Pre-Filter - 13-1/4" OD - 4" Tall - Polyester - Black 29024BL It's 1-1/16" female oil return

It's 1-1/16" female oil return and oil feed ports accept -12 port O-ring fittings

With all the features of the top adult helmets

4 AN Female Swivel to 3 AN Male

2L L92 Eng

Outerwears Air Filter Pre-Filter - Pre-Filter - 13-1/4" OD - 4" Tall - Polyester - Black 29024BL It's 1-1/16" female oil returnOuterwears Pre filters are designed to enhance the efficiency of any performance or exposed air filter. The Pre filter is constructed with a proprietary polyester mesh with uniform micron openings, treated with an optional hydrophobic water repellent process. The mesh is UV resistant, filters debris down to . 005, is shatter proof in freezing temperatures, and resistant to heat up to 450 degrees. The material is puncture resistant and has elasticity